PACS:41.20.Jb, 84.30.Qi, 84.40.Az (all) DOI:10.1070/PU1969v012n02ABEH003939 URL: https://ufn.ru/en/articles/1969/2/j/ Citation: Kozlova A N, Etkin V S "Lecture demonstrations of certain wave phenomena in the 3 cm band" Sov. Phys. Usp.12 295–297 (1969)