diff --git a/src/add-ons/kernel/partitioning_systems/atari/atari.h b/src/add-ons/kernel/partitioning_systems/atari/atari.h
index 0f271b1035..22f8a484f8 100644
--- a/src/add-ons/kernel/partitioning_systems/atari/atari.h
+++ b/src/add-ons/kernel/partitioning_systems/atari/atari.h
@@ -5,6 +5,12 @@
 #ifndef ATARI_PARTITION_H
 #define ATARI_PARTITION_H
 
+/*
+ * An extented partition scheme exists, (several actually), cf.
+ * http://people.debian.org/~smarenka/d-i/atari-fdisk-README
+ * boot sector stuff:
+ * http://leonard.oxg.free.fr/articles/multi_atari/multi_atari.html
+ */
 
 #include "SupportDefs.h"
 #include "ByteOrder.h"