@article{TRSPY_2009_264_a9,
     author = {A. A. Karatsuba},
     title = {Euler and {Number} {Theory}},
     journal = {Informatics and Automation},
     pages = {81--93},
     publisher = {mathdoc},
     volume = {264},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2009_264_a9/}
}