@article{SEMR_2006_3_a14,
     author = {M. N. Ivko},
     title = {Characterization of {Chernikov} groups in class of {Shunkov} groups with {Sylow} four-subgroup},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {232--237},
     publisher = {mathdoc},
     volume = {3},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2006_3_a14/}
}