Siberian Advances in Mathematics
Siberian Advances in Mathematics > 2013 > 23 > 2 > 106-122
Siberian Advances in Mathematics > 2013 > 23 > 2 > 99-105
Siberian Advances in Mathematics > 2013 > 23 > 2 > 91-98
Siberian Advances in Mathematics > 2013 > 23 > 2 > 123-153
Siberian Advances in Mathematics > 2013 > 23 > 2 > 77-83
Siberian Advances in Mathematics > 2013 > 23 > 2 > 84-90