@article{PismaZhETF.10.257,
    title = {Second Harmonic Generation in Bismuth in the Miirowave Band},
    author = {Leviev, G. I. and Yashchin, E. G.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {10},
    issue = {6},
    pages = {257},
    year = {1969},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25945.shtml},
}