@article{PismaZhETF.12.280,
    title = {Oscillations of Excitation Function of Helium Resonance Line and Interference of Two Vacant States in Collisions of $Na^+$ Ions with Helium},
    author = {Bobashev, S. V. and Kritskii, V. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {12},
    issue = {6},
    pages = {280},
    year = {1970},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26277.shtml},
}