PACIFIC JOURNAL OF MATHEMATICS, vol. 211, no. 1, page. 61 - 68, 2003-09
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, vol. 281, no. 2, page. 417 - 424, 2003-05-15
JOURNAL OF THE KOREAN MATHEMATICAL SOCIETY, vol. 40, no. 3, page. 503 - 516, 2003-05
EXPOSITIONES MATHEMATICAE, vol. 21, no. 3, page. 193 - 218, 2003-01
EXPLORATIONS IN COMPLEX AND RIEMANNIAN GEOMETRY, vol. 332, page. 139 - 151, 2003-01
CONTEMPORARY MATHEMATICS , vol. 328, page. 239 - 246, 2003-01