diff --git a/apps/VoxelizerTool/VoxelizerToolApplicationData.cpp b/apps/VoxelizerTool/VoxelizerToolApplicationData.cpp
index 68a0f6a..40228c3 100644
--- a/apps/VoxelizerTool/VoxelizerToolApplicationData.cpp
+++ b/apps/VoxelizerTool/VoxelizerToolApplicationData.cpp
@@ -1,93 +1,87 @@
 // -----------------------------------------------------------------------
 // RTToolbox - DKFZ radiotherapy quantitative evaluation library
 //
 // Copyright (c) German Cancer Research Center (DKFZ),
 // Software development for Integrated Diagnostics and Therapy (SIDT).
 // ALL RIGHTS RESERVED.
 // See rttbCopyright.txt or
 // http://www.dkfz.de/en/sidt/projects/rttb/copyright.html
 //
 // This software is distributed WITHOUT ANY WARRANTY; without even
 // the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 // PURPOSE.  See the above copyright notices for more information.
 //
 //------------------------------------------------------------------------
-/*!
-// @file
-// @version $Revision: 1221 $ (last changed revision)
-// @date    $Date: 2015-12-01 13:43:31 +0100 (Di, 01 Dez 2015) $ (last change date)
-// @author  $Author: hentsch $ (last changed by)
-*/
 
 #include "VoxelizerToolApplicationData.h"
 
 #include "VoxelizerToolCmdLineParser.h"
 
 namespace rttb
 {
 	namespace apps
 	{
 		namespace voxelizerTool
 		{
 			ApplicationData::
 				ApplicationData()
 			{
 				this->reset();
 			}
 
 			void
 				ApplicationData::
 				reset()
 			{
 				_structFile = "";
 				_referenceFile = "";
 				_outputFilename = "";
 				_regEx="";
 				_multipleStructs = false;
 				_binaryVoxelization = false;
 				_addStructures = false;
-        _noStrictVoxelization = false;
+				_noStrictVoxelization = false;
 			}
 
 			void populateAppData(boost::shared_ptr<VoxelizerCmdLineParser> argParser, ApplicationData& appData)
 			{
 				appData._structFile = argParser->get<std::string>(argParser->OPTION_STRUCT_FILE);
 				appData._referenceFile = argParser->get<std::string>(argParser->OPTION_REFERENCE_FILE);
 				appData._outputFilename = argParser->get<std::string>(argParser->OPTION_OUTPUT_FILE_NAME);
-				appData._referenceFileLoadStyle = argParser->get<std::vector<std::string>>(argParser->OPTION_REFERENCE_FILE_LOAD_STYLE);
-        //only valid option for reading structs is dicom until now.
-        appData._structFileLoadStyle.emplace_back("dicom");
+				appData._referenceFileLoadStyle = argParser->get<std::string>(argParser->OPTION_REFERENCE_FILE_LOAD_STYLE);
+				//only valid option for reading structs is dicom until now.
+				appData._structFileLoadStyle = "dicom";
 				appData._regEx = argParser->get<std::string>(argParser->OPTION_REGEX);
 				
 				if (argParser->isSet(argParser->OPTION_MULTIPLE_STRUCTS))
 				{
 					appData._multipleStructs = true;
 					if (argParser->isSet(argParser->OPTION_ADDSTRUCTURES))
 					{
 						appData._addStructures = true;
 					}
 					else
 					{
 						appData._addStructures = false;
 					}
 				}
 
 				if (argParser->isSet(argParser->OPTION_BINARY_VOXELIZATION))
 				{
 					appData._binaryVoxelization = true;
 				}
 
 				if (argParser->isSet(argParser->OPTION_ADDSTRUCTURES))
 				{
 					appData._multipleStructs = false;
 					appData._addStructures = true;
 				}
 
 				if (argParser->isSet(argParser->OPTION_NO_STRICT_VOXELIZATION))
 				{
 					appData._noStrictVoxelization = true;
 				}
 			}
 		}
 	}
 }
diff --git a/apps/VoxelizerTool/VoxelizerToolApplicationData.h b/apps/VoxelizerTool/VoxelizerToolApplicationData.h
index 4155d42..f68ee09 100644
--- a/apps/VoxelizerTool/VoxelizerToolApplicationData.h
+++ b/apps/VoxelizerTool/VoxelizerToolApplicationData.h
@@ -1,73 +1,66 @@
 // -----------------------------------------------------------------------
 // RTToolbox - DKFZ radiotherapy quantitative evaluation library
 //
 // Copyright (c) German Cancer Research Center (DKFZ),
 // Software development for Integrated Diagnostics and Therapy (SIDT).
 // ALL RIGHTS RESERVED.
 // See rttbCopyright.txt or
 // http://www.dkfz.de/en/sidt/projects/rttb/copyright.html
 //
 // This software is distributed WITHOUT ANY WARRANTY; without even
 // the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 // PURPOSE.  See the above copyright notices for more information.
 //
 //------------------------------------------------------------------------
-/*!
-// @file
-// @version $Revision: 1221 $ (last changed revision)
-// @date    $Date: 2015-12-01 13:43:31 +0100 (Di, 01 Dez 2015) $ (last change date)
-// @author  $Author: hentsch $ (last changed by)
-*/
 
 
 #ifndef __VoxelizerApplicationData_h
 #define __VoxelizerApplicationData_h
 
 #include "boost/shared_ptr.hpp"
 
 #include "rttbDoseAccessorInterface.h"
 #include "rttbStructureSetGeneratorInterface.h"
 
 #include <vector>
 #include <string>
 
 namespace rttb
 {
   namespace apps
   {
     namespace voxelizerTool
     {
       class VoxelizerCmdLineParser;
       /*! @class ApplicationData
       @brief Class for storing all relevant variables needed in VoxelizerTool
       */
       class ApplicationData
       {
       public:
-        typedef std::vector<std::string> LoadingStyleArgType;
         core::DoseAccessorInterface::DoseAccessorPointer _dose;
         core::StructureSetGeneratorInterface::StructureSetPointer _struct;
         std::string _structFile;
         std::string _referenceFile;
         std::string _outputFilename;
         std::string _regEx;
-        LoadingStyleArgType _referenceFileLoadStyle;
-        LoadingStyleArgType _structFileLoadStyle;
+		std::string _referenceFileLoadStyle;
+		std::string _structFileLoadStyle;
         bool _multipleStructs;
         bool _binaryVoxelization;
         bool _addStructures;
         bool _noStrictVoxelization;
 
         /*! @brief Resets the variables.
         */
         void reset();
 
         ApplicationData();
       };
       /*! @brief Reads the necessary arguments from the VoxelizerCmdLineParser and writes them in the respective variables of ApplicationData.
       */
       void populateAppData(boost::shared_ptr<VoxelizerCmdLineParser> argParser, ApplicationData& appData);
     }
   }
 }
 #endif
diff --git a/code/io/utils/rttbDoseLoader.cpp b/code/io/utils/rttbDoseLoader.cpp
index ab783b9..3f515bc 100644
--- a/code/io/utils/rttbDoseLoader.cpp
+++ b/code/io/utils/rttbDoseLoader.cpp
@@ -1,108 +1,107 @@
 // -----------------------------------------------------------------------
 // RTToolbox - DKFZ radiotherapy quantitative evaluation library
 //
 // Copyright (c) German Cancer Research Center (DKFZ),
 // Software development for Integrated Diagnostics and Therapy (SIDT).
 // ALL RIGHTS RESERVED.
 // See rttbCopyright.txt or
 // http://www.dkfz.de/en/sidt/projects/rttb/copyright.html
 //
 // This software is distributed WITHOUT ANY WARRANTY; without even
 // the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 // PURPOSE.  See the above copyright notices for more information.
 //
 //------------------------------------------------------------------------
 
 #ifndef __RTTB_DOSE_LOADER_H
 #define __RTTB_DOSE_LOADER_H
 
 #include "rttbDoseIteratorInterface.h"
 #include "rttbExceptionMacros.h"
 
 #include "rttbDicomFileDoseAccessorGenerator.h"
 #include "rttbDicomHelaxFileDoseAccessorGenerator.h"
 #include "rttbITKImageFileAccessorGenerator.h"
 
 namespace rttb
 {
     namespace io
     {
         namespace utils 
         {
             /*! @brief loads a dicom dose from a file.
                 @exception Throws an rttb::Exception if loading fails
                 @sa DicomFileDoseAccessorGenerator
             */
             rttb::core::DoseAccessorInterface::DoseAccessorPointer
                 loadDicomDose(const std::string& fileName)
             {
                 rttb::io::dicom::DicomFileDoseAccessorGenerator generator(fileName);
                 return generator.generateDoseAccessor();
             }
 
             /*! @brief loads a helax dose from a file.
                 @exception Throws an rttb::Exception if loading fails
                 @sa DicomHelaxFileDoseAccessorGenerator
             */
             rttb::core::DoseAccessorInterface::DoseAccessorPointer
                 loadHelaxDose(const std::string& path)
             {
                 rttb::io::helax::DicomHelaxFileDoseAccessorGenerator generator(path);
                 return generator.generateDoseAccessor();
             }
 
             /*! @brief loads an itk dose from a file.
                 @exception Throws an rttb::Exception if loading fails.
                 @details Might be of all formats that ITK know (*.mhd, *.nrrd, ...). The absolute image values are taken as dose.
                 @sa ITKImageFileAccessorGenerator
             */
             rttb::core::DoseAccessorInterface::DoseAccessorPointer
                 loadITKDose(const std::string& fileName)
             {
                 rttb::io::itk::ITKImageFileAccessorGenerator generator(fileName);
                 return generator.generateDoseAccessor();
             }
 
 			rttb::core::DoseAccessorInterface::DoseAccessorPointer loadITKDicomDose(const std::string& fileName) {
 				rttb::io::itk::ITKImageFileAccessorGenerator generator(fileName);
 				return generator.generateDoseAccessor(true);
 			}
 
             /*! @brief loads a dose from a file based on the loadingStyle.
                 @params args[0]: determines the loadingStyle
                 @exception Throws an rttb::Exception if loading fails
             */
             rttb::core::DoseAccessorInterface::DoseAccessorPointer
                 loadDose(const std::string& fileName,
-                    const std::vector<std::string>& args)
+                    const std::string& loadStyle)
             {
                 rttb::core::DoseAccessorInterface::DoseAccessorPointer result;
 
-                if (args.empty() || args[0] == "dicom")
+                if (loadStyle == "" || loadStyle == "dicom")
                 {
                     result = loadDicomDose(fileName);
                 }
-                else if (args[0] == "helax")
+                else if (loadStyle == "helax")
                 {
                     result = loadHelaxDose(fileName);
                 }
-                else if (args[0] == "itk")
+                else if (loadStyle == "itk")
                 {
                     result = loadITKDose(fileName);
                 }
-				else if (args[0] == "itkDicom")
+				else if (loadStyle == "itkDicom")
 				{
 					result = loadITKDicomDose(fileName);
 				}
                 else
                 {
-                    rttbDefaultExceptionStaticMacro(<< "Unknown io style selected. Cannot load data. Selected style: "
-                        << args[0]);
+                    rttbDefaultExceptionStaticMacro(<< "Unknown io style selected. Cannot load data. Selected style: " << loadStyle);
                 }
 
                 return result;
             }
         }
     }
 }
 #endif
diff --git a/code/io/utils/rttbStructLoader.cpp b/code/io/utils/rttbStructLoader.cpp
index 897ebc4..e93409b 100644
--- a/code/io/utils/rttbStructLoader.cpp
+++ b/code/io/utils/rttbStructLoader.cpp
@@ -1,86 +1,77 @@
 // -----------------------------------------------------------------------
 // RTToolbox - DKFZ radiotherapy quantitative evaluation library
 //
 // Copyright (c) German Cancer Research Center (DKFZ),
 // Software development for Integrated Diagnostics and Therapy (SIDT).
 // ALL RIGHTS RESERVED.
 // See rttbCopyright.txt or
 // http://www.dkfz.de/en/sidt/projects/rttb/copyright.html
 //
 // This software is distributed WITHOUT ANY WARRANTY; without even
 // the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 // PURPOSE.  See the above copyright notices for more information.
 //
 //------------------------------------------------------------------------
-/*!
-// @file
-// @version $Revision: 1674 $ (last changed revision)
-// @date    $Date: 2017-01-27 10:34:46 +0100 (Fr, 27 Jan 2017) $ (last change date)
-// @author  $Author: hentsch $ (last changed by)
-*/
 
 #ifndef __RTTB_STRUCT_LOADER_H
 #define __RTTB_STRUCT_LOADER_H
 
 #include "rttbDicomFileStructureSetGenerator.h"
 
 #include "rttbExceptionMacros.h"
 
 namespace rttb
 {
     namespace io
     {
         namespace utils 
         {
-            using LoadingStyleArgType = std::vector<std::string>;
-
             /*! @brief loads a dicom struct from a file.
             You may pass a structure name regex. If is not empty, it will be used to filter structure in the
             loading process. Only structures with a name matching the reg ex will be loaded. This speeds up the
             loading process significantly if you need only one structure out of a structure set.
             @exception Throws an rttb::Exception if loading fails
             @sa DicomFileStructureSetGenerator
             */
             rttb::core::StructureSetGeneratorInterface::StructureSetPointer
                 loadDicomStruct(
                     const std::string& fileName, const std::string& structNameRegex = "")
             {
                 rttb::io::dicom::DicomFileStructureSetGenerator generator(fileName);
 
                 if (!structNameRegex.empty())
                 {
                     generator.setStructureLabelFilterActive(true);
                     generator.setFilterRegEx(structNameRegex);
                 }
 
                 return generator.generateStructureSet();
             }
 
             /*! @brief loads a struct from a file based on the loadingStyle.
             You may pass a structure name regex. If is not empty, it will be used to filter structure in the
             loading process. Only structures with a name matching the reg ex will be loaded. This speeds up the
             loading process significantly if you need only one structure out of a structure set.
             @exception Throws an rttb::Exception if loading fails
             @details voxelized itk images are read in generateMask() directly
             */
             rttb::core::StructureSetGeneratorInterface::StructureSetPointer loadStruct(
-                const std::string& fileName, const LoadingStyleArgType& args, const std::string& structNameRegex = "")
+                const std::string& fileName, const std::string& loadStyle, const std::string& structNameRegex = "")
             {
                 rttb::core::StructureSetGeneratorInterface::StructureSetPointer result;
                 
-                if (args.empty() || args[0] == "dicom")
+                if (loadStyle == "" || loadStyle == "dicom")
                 {
                     result = rttb::io::utils::loadDicomStruct(fileName, structNameRegex);
                 }
                 else
                 {
-                    rttbDefaultExceptionStaticMacro(<< "Unknown io style selected. Cannot load data. Selected style: "
-                        << args[0]);
+                    rttbDefaultExceptionStaticMacro(<< "Unknown io style selected. Cannot load data. Selected style: " << loadStyle);
                 }
 
                 return result;
             }
         }
     }
 }
 #endif