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- [2] 49TH MEETING OF THE "WURTTEMBERG-DERMATOLOGICAL-SOCIETY, JUNE 25, 1983 ZEITSCHRIFT FUR HAUTKRANKHEITEN H&G, 1984, 59 (22): : 1559 - 1571
- [6] Association of British Columbia Professional Foresters 49th annual general meeting FORESTRY CHRONICLE, 1997, 73 (03): : 310 - 310