Russian Mathematics
Russian Mathematics > 2015 > 59 > 1 > 39-50
Russian Mathematics > 2015 > 59 > 6 > 23-33
Russian Mathematics > 2015 > 59 > 11 > 36-44
Russian Mathematics > 2015 > 59 > 12 > 46-55
Russian Mathematics > 2015 > 59 > 1 > 39-50
Russian Mathematics > 2015 > 59 > 6 > 23-33
Russian Mathematics > 2015 > 59 > 11 > 36-44
Russian Mathematics > 2015 > 59 > 12 > 46-55