@article{PismaZhETF.51.249,
    title = {Conversion of IR image into violet image in potassium vapor},
    author = {Movsesyan, M. E. and Papoyan, A. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {51},
    issue = {5},
    pages = {249},
    year = {1990},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17242.shtml},
}