@article{DAN_1973_211_3_a6,
     author = {A. F. Lavrik and A. Sh. Sobirov},
     title = {On the remainder term in the elementary proof of the prime number theorem},
     journal = {Doklady Akademii Nauk},
     pages = {534--536},
     publisher = {mathdoc},
     volume = {211},
     number = {3},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_211_3_a6/}
}