Avoid linking PDFs on the wiki that might change location
Change-Id: I80aecba243c2e9491c86dcbfc353d5cd2075aafa
diff --git a/developer/xos-intro.md b/developer/xos-intro.md
index 5249f3f..7eaa0b8 100644
--- a/developer/xos-intro.md
+++ b/developer/xos-intro.md
@@ -3,8 +3,8 @@
CORD adopts a model-based design, which is to say all aspects
of operating and managing CORD is mediated by a model-based
control plane. XOS is a tool that CORD uses to implement this
-control plane. For an overview of XOS, see the following white paper:
-[XOS: Modeling-as-a-Service](https://wiki.opencord.org/display/CORD/XOS+and+the+CORD+Controller?preview=/1279317/4981376/XOS%20Modeling-as-a-Service.pdf).
+control plane. For an overview of XOS, see the [XOS page on the
+CORD wiki](https://wiki.opencord.org/display/CORD/XOS+and+NEM).
XOS is a self-contained component of CORD, with its own
[Guide](https://guide.xosproject.org). Consult this Guide to learn how
@@ -13,8 +13,3 @@
to [install XOS](https://guide.xosproject.org/install.html) as a
stand-alone platform, which can be useful when developing models
and synchronizers.
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