GEOMETRIAE DEDICATA, vol. 121, no. 1, page. 205 - 219, 2006-08
CENTRAL EUROPEAN JOURNAL OF MATHEMATICS, vol. 7, no. 1, page. 1 - 45, 2009-03
MATHEMATISCHE ZEITSCHRIFT, vol. 276, no. 1-2, page. 51 - 79, 2014-02
JOURNAL OF NUMBER THEORY, vol. 122, no. 1, page. 1 - 12, 2007-01
JOURNAL FUR DIE REINE UND ANGEWANDTE MATHEMATIK, vol. 600, page. 81 - 116, 2006-01