Search results for: J. Tian
Vestnik St. Petersburg University: Mathematics > 2007 > 40 > 2 > 152-157
Vestnik St. Petersburg University: Mathematics > 2007 > 40 > 1 > 89-92
Vestnik St. Petersburg University: Mathematics > 2007 > 40 > 2 > 152-157
Vestnik St. Petersburg University: Mathematics > 2007 > 40 > 1 > 89-92