@article{IVM_1980_8_a11,
     author = {E. E. Petrov},
     title = {Classes of conjugate elements of the group $Sl(2,Z/p^{\lambda}Z)$, $p\neq 2$},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {85--88},
     publisher = {mathdoc},
     number = {8},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1980_8_a11/}
}