@article{JETPL.111.846,
    title = {Controllable Source of Single Photons Based on a Micromaser with an Atomic Beam without Inversion},
    author = {Popov, E. N. and Reshetov, V. A.},
    journal = {JETP Lett.},
    volume = {111},
    issue = {12},
    pages = {727},
    year = {2020},
    doi = {10.1134/S0021364020120127},
    url = {http://jetpletters.ru/ps/dx/10.31857/S1234567820120113},
    note = {[Pisma v ZhETF 111, 846 (2020)]}
}