JOURNAL OF COMBINATORIAL THEORY SERIES A, vol. 95, no. 2, page. 335 - 348, 2001-08
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, vol. 257, no. 1, page. 79 - 88, 2001-05-01
PACIFIC JOURNAL OF MATHEMATICS, vol. 198, no. 2, page. 373 - 383, 2001-04
IEEE TRANSACTIONS ON INFORMATION THEORY, vol. 47, no. 1, page. 396 - 399, 2001-01
ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, vol. 31, no. 4, page. 1265 - 1275, 2001-01
MANUSCRIPTA MATHEMATICA, vol. 104, no. 1, page. 123 - 133, 2001-01
JOURNAL OF ALGEBRAIC COMBINATORICS, vol. 13, no. 1, page. 5 - 13, 2001-01