@article{DAN_1963_152_3_a9,
     author = {A. F. Lavrik},
     title = {The theory of quasi-prime numbers},
     journal = {Doklady Akademii Nauk},
     pages = {544--547},
     publisher = {mathdoc},
     volume = {152},
     number = {3},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_152_3_a9/}
}