1. Neill and Gunter Limited, 845 Prospect Street, Fredericton, New Brunswick, Canada E3B 2T7, Granatstein Technical Services, 489 1/2 Cooper Street, Ottawa, Ontario, Canada K1R 5H8, CETC-Ottawa, NRCan/RNCan, 1 Haanel Drive, Ottawa, Ontario, Canada K1A 1M1, and Instituto Nacional del Carbón-CSIC, Fco Pintado Fe 26, 33011 Oviedo, Spain