Search results for: N. Bondar
Siberian Advances in Mathematics > 2019 > 29 > 1 > 22-31
Siberian Mathematical Journal > 2008 > 49 > 2 > 202-217
Siberian Advances in Mathematics > 2019 > 29 > 1 > 22-31
Siberian Mathematical Journal > 2008 > 49 > 2 > 202-217