Sevick's transmission line transformers theory and practice by Mack, Raymond A., Sevick, Jerry

Available for University of the Philippines Diliman via IET Digital Library. Click here to access
Also available remotely for University of the Philippines Diliman via IET Digital Library. Click here to access thru EZproxy

Square-loop ferrite circuitry storage and logic techniques by Quartly, C. J.

Square-loop ferrite circuitry; storage and logic techniques by Quarly, C J