TETRAHEDRON LETTERS, vol. 45, no. 24, page. 4607 - 4610, 2004-06-07
PHYSICAL REVIEW B, vol. 61, no. 16, page. 10682 - 10687, 2000-04-15
IEEE TRANSACTIONS ON MAGNETICS, vol. 45, no. 6, page. 2580 - 2583, 2009-06
PHYSICAL REVIEW B, vol. 76, no. 19, 2007-11