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REVISTA MATEMATICA IBEROAMERICANA, vol. 18, no. 1, page. 231 - 247, 2002-01

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, vol. 257, no. 1, page. 79 - 88, 2001-05-01

BULLETIN OF THE LONDON MATHEMATICAL SOCIETY, vol. 46, page. 629 - 642, 2014-06

American Journal of Mathematics, vol. 136, no. 6, page. 1581 - 1608, 2014-12

IEEE TRANSACTIONS ON INFORMATION THEORY, vol. 49, no. 5, page. 1275 - 1282, 2003-05

ILLINOIS JOURNAL OF MATHEMATICS, vol. 45, no. 1, page. 25 - 39, 2001-01

IEEE TRANSACTIONS ON INFORMATION THEORY, vol. 47, no. 1, page. 396 - 399, 2001-01

CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES, vol. 42, no. 3, page. 263 - 273, 1999-09

DUKE MATHEMATICAL JOURNAL, vol. 161, no. 2, page. 173 - 199, 2012-02-01

LINEAR ALGEBRA AND ITS APPLICATIONS, vol. 435, no. 10, page. 2544 - 2559, 2011-11-15