@article{PismaZhETF.22.560,
    title = {Nonlinear spectroscopy based on the effect of resonant optical detection},
    author = {Butylkin, V. S. and Krochik, G. M. and Khronopulo, Yu. G.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {22},
    issue = {11},
    pages = {560},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23401.shtml},
}