diff --git a/share/sgml/urls.ent b/share/sgml/urls.ent
index dacf1811d6..368d2c5132 100644
--- a/share/sgml/urls.ent
+++ b/share/sgml/urls.ent
@@ -65,6 +65,8 @@
 <!ENTITY url.books.corp-net-guide.en	"&url.doc.langbase.en;/books/corp-net-guide">
 <!ENTITY url.books.design-44bsd		"&url.doc.langbase;/books/design-44bsd">
 <!ENTITY url.books.design-44bsd.en	"&url.doc.langbase.en;/books/design-44bsd">
+<!ENTITY url.books.dev-model		"&url.doc.langbase;/books/dev-model">
+<!ENTITY url.books.dev-model.en		"&url.doc.langbase.en;/books/dev-model">
 <!ENTITY url.books.developers-handbook	"&url.doc.langbase;/books/developers-handbook">
 <!ENTITY url.books.developers-handbook.en "&url.doc.langbase.en;/books/developers-handbook">
 <!ENTITY url.books.faq			"&url.doc.langbase;/books/faq">
@@ -80,6 +82,8 @@
 
 <!ENTITY url.articles.5-roadmap		"&url.doc.langbase;/articles/5-roadmap">
 <!ENTITY url.articles.5-roadmap.en	"&url.doc.langbase.en;/articles/5-roadmap">
+<!ENTITY url.articles.bsdl-gpl		"&url.doc.langbase;/articles/bsdl-gpl">
+<!ENTITY url.articles.bsdl-gpl.en	"&url.doc.langbase.en;/articles/bsdl-gpl">
 <!ENTITY url.articles.checkpoint	"&url.doc.langbase;/articles/checkpoint">
 <!ENTITY url.articles.checkpoint.en	"&url.doc.langbase.en;/articles/checkpoint">
 <!ENTITY url.articles.committers-guide	"&url.doc.langbase;/articles/committers-guide">