--- manual/manual_references.bib	2004/11/12 22:23:39	1.17
+++ manual/manual_references.bib	2005/07/05 19:51:17	1.18
@@ -1159,3 +1159,14 @@
   VOLUME      = 105,
   PAGES       = "3325-3338"
 }
+
+@Article{Shapiro_70,
+  author = 	 {Shapiro, R.},
+  title = 	 {Smoothing, filtering, and boundary effects},
+  journal = 	 {Reviews of Geophysics and Space Physics},
+  year = 	 {1970},
+  volume = 	 {8},
+  number = 	 {2},
+  pages = 	 {359--387},
+}
+