diff --git a/async-message-resources.adoc b/async-message-resources.adoc
index 8c69947..7850112 100644
--- a/async-message-resources.adoc
+++ b/async-message-resources.adoc
@@ -1,6 +1,7 @@
 # Async Message Resoources
 
-
+http://docs.oasis-open.org/amqp/core/v1.0/amqp-core-complete-v1.0.pdf
+ <= AMQP Core Complete v1.0 (pdf)
 https://rabbitmq.com/download.html
  <= download and install page +
 https://github.com/rabbitmq/rabbitmq-server
@@ -15,8 +16,6 @@ https://rabbitmq.com/queues.html
  <= +
 https://qpid.apache.org/index.html
  <= +
-amqp-core-complete-v1.0.pdf +
- <= +
 https://ably.com/topic/intro-to-amqp-1-0
  <= +
 https://jstobigdata.com/rabbitmq/complete-rabbitmq-tutorial-in-java/