Vizmuller, P. (1987). Filters with helical and folded helical resonators. Artech House.
Chicago Style (17th ed.) CitationVizmuller, Peter. Filters with Helical and Folded Helical Resonators. Norwood, MA: Artech House, 1987.
MLA (8th ed.) CitationVizmuller, Peter. Filters with Helical and Folded Helical Resonators. Artech House, 1987.
Warning: These citations may not always be 100% accurate.