Search results for: P. P. Chernega
Ukrainian Mathematical Journal > 2015 > 67 > 2 > 302-313
Ukrainian Mathematical Journal > 2012 > 64 > 4 > 616-633
Ukrainian Mathematical Journal > 2015 > 67 > 2 > 302-313
Ukrainian Mathematical Journal > 2012 > 64 > 4 > 616-633