diff --git a/libvips/resample/lbb.cpp b/libvips/resample/lbb.cpp
index 750d4350..22699693 100644
--- a/libvips/resample/lbb.cpp
+++ b/libvips/resample/lbb.cpp
@@ -1,4 +1,8 @@
 /* lbb (locally bounded bicubic) resampler
+ *
+ * N. Robidoux, C. Racette and J. Cupitt 23-28/03/2010
+ *
+ * N. Robidoux 16-19/05/2010
  */
 
 /*
@@ -29,7 +33,7 @@
  */
 
 /*
- * 2010 (c) Nicolas Robidoux, John Cupitt, Chantal Racette.
+ * 2010 (c) Nicolas Robidoux, Chantal Racette, John Cupitt.
  *
  * N. Robidoux thanks Øyvind Kolås, Geert Jordaens, Adam Turcotte,
  * Ralf Meyer, Minglun Gong and Eric Daoust for useful comments and
diff --git a/libvips/resample/nohalo.cpp b/libvips/resample/nohalo.cpp
index 9ee0eba9..97d0340b 100644
--- a/libvips/resample/nohalo.cpp
+++ b/libvips/resample/nohalo.cpp
@@ -1,12 +1,18 @@
 /* Nohalo subdivision followed by LBB (Locally Bounded Bicubic)
  * interpolation
  *
- * N. Robidoux 1/4-29/5/2009
+ * Nohalo level 1 with bilinear finishing scheme hacked for vips based
+ * on code by N. Robidoux by J. Cupitt, 20/1/09
  *
- * N. Robidoux based on code by N. Robidoux, A. Turcotte and J. Cupitt
- * 27/1/2010
+ * N. Robidoux and J. Cupitt, 4-17/3/09
  *
- * N. Robidoux, C. Racette and J. Cupitt 11/5--18/5/2010
+ * N. Robidoux, 1/4-29/5/2009
+ *
+ * Nohalo level 2 with bilinear finishing scheme by N. Robidoux based
+ * on code by N. Robidoux, A. Turcotte and J. Cupitt, 27/1/2010
+ *
+ * Nohalo level 1 with LBB finishing scheme by N. Robidoux and
+ * C. Racette, 11/5--18/5/2010
  */
 
 /*