" 

 == Undefined references == 

 @RGloucester: I notice that some of the references apparently are invoked, but never defined, meaning you say . Since you appear to be the one who added the references (or I guess you could have segmented certain things from other articles)... In any case, it would be nice if I could just know the URLs, otherwise, it will be necessary to hunt for new sources. Thanks.    
 ::I'll transfer them. They came from the DPR article.  —  "