diff --git a/RBBGCMuso/R/outputMapping.R b/RBBGCMuso/R/outputMapping.R
index 46fd27c..bb148b7 100644
--- a/RBBGCMuso/R/outputMapping.R
+++ b/RBBGCMuso/R/outputMapping.R
@@ -1,9 +1,9 @@
 #' updateMusoMapping
 #'
-#' This function update the the muso outputcode-variable matrix
-#' @author Roland Hollos
-#' @param output_map_init The outputcode-variable bindings is described in output_map_init.c file, via this parameter, you can give it the the function
-#' @return The outputcode-variable matrix, and also change the global variable
+#' This function updates the muso output code-variable matrix. Within Biome-BGCMuSo the state variables and fluxes are marked by integer numbers. In order to provide meaningful variable names (e.g. 3009 means Gross Primary Production) a conversion table is needed which is handled by this function. 
+#' @author Roland HOLLOS
+#' @param output_map_init The output code-variable bindings are described in output_map_init.c file that is part of the current Biome-BGCMuSo source code. Using this function the user can read the output_map_init.c file and pass it to RBBGCMuso for further work.
+#' @return The output code-variable matrix, and also the function changes the global variable
 #' @export
 #' @usage updateMusoMapping(output_map_init="output_map_init.c")
 
@@ -20,11 +20,11 @@ updateMusoMapping<-function(output_map_init="output_map_init.c"){
 
 #' musoMapping
 #'
-#' musoMapping can give us the name of a muso outputcode
-#' @author Roland Hollos
+#' musoMapping can provide the user the name of a Biome-BGCMuSo output code. Within Biome-BGCMuSo the state variables and fluxes are marked by integer numbers. In order to provide meaningful variable names (e.g. 3009 means Gross Primary Production) a conversion table is needed which is utilized by this function. This function converts variable codes into names musoMappingFind does the opposite.
+#' @author Roland HOLLOS
 #' @param code the MuSo outputcode
 #' @param mapData updateMusomapping generated matrix
-#' @return The name of the MuSo outputcode
+#' @return The name of the Biome-BGCMuSo output code (e.g. if code is 3009 this function should return GPP to the user)
 #' @export
 #' @usage musoMapping(code, mapData=NULL)
 
@@ -40,10 +40,10 @@ musoMapping <- function(code, mapData=NULL){
 
 #' musoMappingFind
 #'
-#' musoMapping can give us the name of a muso outputcode
-#' @author Roland Hollos
-#' @param variable If null return the whole mapping, else search a variable code
-#' @return The code of th specific name
+#' musoMappingFind can provide us the code of the Biome-BGCMuSo output variable name. Within Biome-BGCMuSo the state variables and fluxes are marked by integer numbers. In order to provide meaningful variable names (e.g. 3009 means Gross Primary Production) a conversion table is needed which is utilized by this function. This function converts variable names into codes. musoMapping does the opposite.
+#' @author Roland HOLLOS
+#' @param variable If this is null, return the whole mapping table. In other cases search for the variable code
+#' @return The code of the specific output variable name
 #' @export
 #' @usage musoMapping(code, mapData=NULL)