@article{MVK_2013_4_3_a6,
     author = {A. S. Rybakov},
     title = {A modification of an algorithm for estimating the cardinality of integers with no more than three prime divisors},
     journal = {Matemati\v{c}eskie voprosy kriptografii},
     pages = {131--158},
     year = {2013},
     volume = {4},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MVK_2013_4_3_a6/}
}