Group rings and extensions. I

[1] Expansion of groups and their isomorphism. [J]. MATHEMATISCHE ZEITSCHRIFT, 1934, 38 : 375 - 416

[2] BURNSIDE, 1911, THEORY GROUPS FINITE, P327

[3] NAKAYAMA T, 1935, MATH ANN, V112, P85

[4] REIDEMEISTER, EINFUHRUNG KOMBINATO, P35

[5] A contribution to the theory of the composition of finite groups. [J]. MATHEMATISCHE ZEITSCHRIFT, 1930, 32 : 187 - 189

[6] Schreier O., 1926, MONATSH MATH PHYS, V34, P165

[7] Schreier O., 1927, ABH MATH SEM HAMBURG, V5, P161

[8] von Neumann J, 1936, P NATL ACAD SCI USA, V22, P707

[9] Wedderburn JHM, 1908, P LOND MATH SOC, V6, P77

[10] WEDDERBURN JHM, 1934, AM MATH SOC COLLOQ P, V17, P168

[1] Expansion of groups and their isomorphism. [J]. MATHEMATISCHE ZEITSCHRIFT, 1934, 38 : 375 - 416

[2] BURNSIDE, 1911, THEORY GROUPS FINITE, P327

[3] NAKAYAMA T, 1935, MATH ANN, V112, P85

[4] REIDEMEISTER, EINFUHRUNG KOMBINATO, P35

[5] A contribution to the theory of the composition of finite groups. [J]. MATHEMATISCHE ZEITSCHRIFT, 1930, 32 : 187 - 189

[6] Schreier O., 1926, MONATSH MATH PHYS, V34, P165

[7] Schreier O., 1927, ABH MATH SEM HAMBURG, V5, P161

[8] von Neumann J, 1936, P NATL ACAD SCI USA, V22, P707

[9] Wedderburn JHM, 1908, P LOND MATH SOC, V6, P77

[10] WEDDERBURN JHM, 1934, AM MATH SOC COLLOQ P, V17, P168