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Discussiones Mathematicae Probability and Statistics > 2000 > 20 > 1 > 115-134
Discussiones Mathematicae Probability and Statistics > 2000 > 20 > 1 > 63-83
Discussiones Mathematicae Probability and Statistics > 2000 > 20 > 1 > 115-134
Discussiones Mathematicae Probability and Statistics > 2000 > 20 > 1 > 63-83