@article{PismaZhETF.48.181,
    title = {Observation of two-photon dynamic Stark effect in a three-level Rydberg Na atom},
    author = {Beterov, I. M. and Ryabtsev, I. I. and Fateev, N. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {48},
    issue = {4},
    pages = {181},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16684.shtml},
}