Problem 10824 - 08 (2000) - Ho-joo Lee (South Korea).
Problem 10739 - 06 (1999) - O. Ciaurri (Spain).
Problem 10711 - 02 (1999) - F. Luca (Germany).
Problem 10704 - 01 (1999) - W. G. Spohn (USA).
Problem 10697 - 10 (1998) - J. L. Diaz-Barrero (Spain).
Problem 10613 - 08 (1997) - F. J. Flanigan (USA).
Problem 10560 - 10 (1996) - E. Alkan (Turkey).
Problem 10543 - 08 (1996) - Y. Diao (USA).
Problem 10542 - 07 (1996) - J. Anglesio (France).
Problem 10533 - 06 (1996) - A. Flores (USA).
Problem 10523 - 05 (1996) - M. Bencze (Romania).
Problem 10483 - 09 (1995) - S. Rabinowitz (USA).
Problem 10476 - 08 (1995) - S. T. Stefanov (Bulgaria).
Problem 10469 - 07 (1995) - J. Anglesio (France).
Problem 10454 - 05 (1995) - H. Tamvakis (USA).
Problem 10415 - 09 (1994) - E. Kitchen (USA).
Problem 10405 - 08 (1994) - H. Gulicher (Germany).
Problem 10362 - 02 (1994) - H. Liebeck and A. Osborn (UK).
Problem 10317 - 06 (1993) - J. B. R. Marquez (Spain).
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