Russian Mathematics
Russian Mathematics > 2009 > 53 > 6 > 7-14
Russian Mathematics > 2010 > 54 > 3 > 77-79
Russian Mathematics > 2010 > 54 > 9 > 71-73
Russian Mathematics > 2011 > 55 > 6 > 37-45
Russian Mathematics > 2011 > 55 > 8 > 19-27
Russian Mathematics > 2011 > 55 > 12 > 63-66
Russian Mathematics > 2013 > 57 > 4 > 26-34
Russian Mathematics > 2014 > 58 > 9 > 22-35
Russian Mathematics > 2014 > 58 > 9 > 62-65
Russian Mathematics > 2015 > 59 > 7 > 7-20
Russian Mathematics > 2015 > 59 > 10 > 16-22