@article{PismaZhETF.51.499,
    title = {Quantization with allowance for the barrier penetration},
    author = {Mur, V. D. and Popov, V. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {51},
    issue = {10},
    pages = {499},
    year = {1990},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17315.shtml},
}