PACS:01.10.Fv DOI:10.1070/PU1978v021n12ABEH005751 URL: https://ufn.ru/en/articles/1978/12/p/ Citation: Gudzenko L I, Lakoba I S, Syts’ko Yu I, Yakovlenko S I "Analysis of the possibility of amplifying VUV radiation in a helium plasma" Sov. Phys. Usp.21 1011–1012 (1978)