Are you using Scitopia? Scitopia is an Internet search engine that searches the research of 21 professional and academic societies in the hard sciences. Societies such as the American Society of Mechanical Engineers, the Institute of Electrical and Electronics Engineers, and the Society of Automotive Engineers allow their material to be searched using this search engine. So instead of wading through the millions of results you might find in a generic search engine, you can limit your search to only retrieve information provided by your colleagues in the field.
Scitopia is a free search engine--you don’t have to be affiliated with the university to search it. Some of the results will have links to full text. If full text isn’t available and you're affiliated with UMN, get in touch with me or another librarian and we can help you get access to the document you need.