1. Natural Resources Canada, Canadian Forest Service - Atlantic Forestry Centre; PO Box 4000 Fredericton NB E3B 5P7 Canada
2. Canadian Food Inspection Agency; 4321 Still Creek Drive Burnaby BC V5C 6S7 Canada
3. National Forest Centre; Forest Research Institute Zvolen; T.G. Masaryka 22 960 92 Zvolen Slovak Republic
4. Natural Resources of Canada; Canadian Forest Service - Great Lakes Forestry Centre; 1219 Queen Street East Sault Ste-Marie ON P6A 2E5 Canada