diff --git a/spring-security-custom-permission/README.MD b/spring-security-custom-permission/README.MD
index 0812a73090..d59aea97b4 100644
--- a/spring-security-custom-permission/README.MD
+++ b/spring-security-custom-permission/README.MD
@@ -3,4 +3,5 @@ The "REST With Spring" Classes: http://github.learnspringsecurity.com
 
 ###Relevant Articles:
 - [A Custom Security Expression with Spring Security](http://www.baeldung.com/spring-security-create-new-custom-security-expression)
-- [Custom AccessDecisionVoters in Spring Security](http://www.baeldung.com/spring-security-custom-voter)
\ No newline at end of file
+- [Custom AccessDecisionVoters in Spring Security](http://www.baeldung.com/spring-security-custom-voter)
+- [Spring Security: Authentication with a Database-backed UserDetailsService](http://www.baeldung.com/spring-security-authentication-with-a-database)