@article{PismaZhETF.44.139,
    title = {The feasibility of studying electronic topological transitions by means of tunneling},
    author = {Varlamov, A. A. and Pantsulaya, A. V.},
    journal = {Письма в ЖЭТФ},
    volume = {44},
    issue = {3},
    pages = {139},
    year = {1986},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20869.shtml},
}