This looks to be a conflict in the way conference articles are handled coming into our WorldCat link resolver.
The link resolver seems to be treating them as book chapters and isn’t using the ISBN contained in the OpenURL string to retrieve the full text option.
Here is an example OpenURL request:
Which becomes this URL in the link resolver:
https //libraryname.on.worldcat org/atoztitles/link?sid=Compendex&issn=&date=2015&volume=&issue=&spage=613&epage=673&title=Handbook+of+Unmanned+Aerial+Vehicles&atitle=Adaptive+control+of+unmanned+aerial+vehicles%3A+Theory+and+flight+tests&aulast=Kannan&aufirst=Suresh+K.&isbn=9789048197064&rft_id=info%3Adoi%2F10.1007%2F978-90-481-9707-1_61&ABBR=20172803904766&arnumber=
This conflict is a result of the Knowledge Base currently not supporting article/chapter-level linking