diff --git a/rogueviz/embeddings.cpp b/rogueviz/som/embeddings.cpp
similarity index 94%
rename from rogueviz/embeddings.cpp
rename to rogueviz/som/embeddings.cpp
index a7e48f93..7d026338 100644
--- a/rogueviz/embeddings.cpp
+++ b/rogueviz/som/embeddings.cpp
@@ -1,3 +1,6 @@
+// here the embeddings used in our experiments are implemented
+// Copyright (C) 2011-2022 Tehora and Zeno Rogue, see 'hyper.cpp' for details
+
 #include "kohonen.h"
 
 namespace rogueviz {
diff --git a/rogueviz/kohonen.cpp b/rogueviz/som/kohonen.cpp
similarity index 99%
rename from rogueviz/kohonen.cpp
rename to rogueviz/som/kohonen.cpp
index e309015b..cb4a2cf4 100644
--- a/rogueviz/kohonen.cpp
+++ b/rogueviz/som/kohonen.cpp
@@ -1,8 +1,5 @@
-// Hyperbolic Rogue
-// Copyright (C) 2011-2018 Zeno and Tehora Rogue, see 'hyper.cpp' for details
-
-// Kohonen's self-organizing maps. 
-// This is a part of RogueViz, not a part of HyperRogue.
+// the general implementation of non-Euclidean self-organizing maps
+// Copyright (C) 2011-2022 Tehora and Zeno Rogue, see 'hyper.cpp' for details
 
 #include "kohonen.h"
 
diff --git a/rogueviz/kohonen.h b/rogueviz/som/kohonen.h
similarity index 89%
rename from rogueviz/kohonen.h
rename to rogueviz/som/kohonen.h
index 7a653ebe..b73379a4 100644
--- a/rogueviz/kohonen.h
+++ b/rogueviz/som/kohonen.h
@@ -1,8 +1,10 @@
-/* a header file for kohonen and embedding */
+// a header file for kohonen and embedding
+// Copyright (C) 2011-2022 Tehora and Zeno Rogue, see 'hyper.cpp' for details
+
 #ifndef _KOHONEN_H_
 #define _KOHONEN_H_
 
-#include "rogueviz.h"
+#include "../rogueviz.h"
 
 namespace rogueviz {