Siberian Advances in Mathematics
Siberian Advances in Mathematics > 2018 > 28 > 1 > 60-64
Siberian Advances in Mathematics > 2018 > 28 > 1 > 53-59
Siberian Advances in Mathematics > 2018 > 28 > 1 > 74-77
Siberian Advances in Mathematics > 2018 > 28 > 1 > 1-22
Siberian Advances in Mathematics > 2018 > 28 > 1 > 39-52
Siberian Advances in Mathematics > 2018 > 28 > 1 > 23-38
Siberian Advances in Mathematics > 2018 > 28 > 1 > 65-73