--- a/bib	Tue Jun 12 09:37:01 2012 +0200
+++ b/bib	Tue Jun 12 18:04:55 2012 +0200
@@ -109,6 +109,7 @@
 %D 1994
 %I Addison-Wesley
 %O \s-1ISBN\s0: 0-201-54777-5
+%K mcilroy unix philosophy (p. 53)
 
 %A Ken Thompson
 %A Dennis M. Ritchie
@@ -245,3 +246,24 @@
 %B Unix Incompatibility Notes
 %D 2000\(en2004
 %O \f(CW\s-1http://www.unixpapa.com/incnote/dbm.html\s0
+
+%L RFC\|821
+%A Jonathan B. Postel
+%T Simple Mail Transfer Protocol
+%S Request for Comments
+%V 821
+%I IETF
+%D August 1982
+%O \f(CW\s-1http://www.ietf.org/rfc/rfc821.txt\s0
+
+%A M. D. McIlroy
+%A E. N. Pinson
+%A B. A. Tague
+%T UNIX Time-Sharing System: Foreword
+%J The Bell System Technical Journal
+%I Bell Laboratories
+%D 1978
+%V 57
+%N 6
+%P 1902
+%K bstj