@article{PismaZhETF.18.638,
    title = {Coherent effects in the propagation of an ultrashort light pulse in a medium with resonant two-photon absorption},
    author = {Poluektov, I. A. and Popov, Yu. M. and Roitberg, V. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {18},
    issue = {10},
    pages = {638},
    year = {1973},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24052.shtml},
}