Vestnik St. Petersburg University, Mathematics
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 1 > 92-101
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 1 > 81-91
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 1 > 1-18
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 1 > 59-65
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 1 > 19-29
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 1 > 54-58
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 1 > 122-126
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 1 > 75-80
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 1 > 102-111
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 1 > 36-53
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 1 > 112-121
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 1 > 30-35
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 1 > 66-74
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 2 > 127-135
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 2 > 194-198
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 2 > 214-219
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 2 > 154-161
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 2 > 207-213
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 2 > 169-177
Vestnik St. Petersburg University, Mathematics > 2019 > 52 > 2 > 145-153