Vestnik of
Samara State University
2003, 2-nd S.I.
2004, No. 2
2004, No. 4
2006, No. 2
2006, No. 6/1
2006, No. 9
2007, No. 6
2008, No. 3
2003, 2-nd S.I.2003, 2-nd S.I.2004, No. 22004, No. 42006, No. 22006, No. 6/1 2006, No. 9 2007, No. 6 2008, No. 3