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Mediterranean Journal of Mathematics > 2011 > 8 > 4 > 553-561
Mathematical Logic Quarterly > 56 > 3 > 310 - 322
Acta Mathematica Sinica, English Series > 2009 > 25 > 10 > 1741-1758
Integral Equations and Operator Theory > 2003 > 45 > 2 > 125-154
Journal of Theoretical Probability > 2001 > 14 > 2 > 599-603