Khrapak, A. G., & Schmidt, W. F. (2011). Negative ions in liquid helium.
Chicago Style (17th ed.) CitationKhrapak, A. G., and W. F. Schmidt. Negative Ions in Liquid Helium. 2011.
MLA (8th ed.) CitationKhrapak, A. G., and W. F. Schmidt. Negative Ions in Liquid Helium. 2011.
Warning: These citations may not always be 100% accurate.