@article{PismaZhETF.4.41,
    title = {Effective Cross Sections of Two-photon Absorption in Organic Molecules},
    author = {Galanin, M. D. and Chizhikova, Z. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {4},
    issue = {2},
    pages = {41},
    year = {1966},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24821.shtml},
}