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Publication date: November 1, 1999Language: EnglishISSN (print) 0893-2174ISSN (online) 1942-4426QP USA
Publication date: September 1, 1999Language: EnglishISSN (print) 0893-2174ISSN (online) 1942-4426QP USA
Publication date: July 1, 1999Language: EnglishISSN (print) 0893-2174ISSN (online) 1942-4426QP USA
Publication date: May 1, 1999Language: EnglishISSN (print) 0893-2174ISSN (online) 1942-4426QP USA
Publication date: March 1, 1999Language: EnglishISSN (print) 0893-2174ISSN (online) 1942-4426QP USA
Publication date: January 1, 1999Language: EnglishISSN (print) 0893-2174ISSN (online) 1942-4426QP USA