TY - JOUR AU - Michael Winchester AU - William Kelly AU - Jacqueline Mann AU - William Guthrie AU - Bruce MacDonald AU - Gregory Turk C2 - Fresenius Journal of Analytical Chemistry DA - 2001-06-01 LA - en M1 - 370 PB - Fresenius Journal of Analytical Chemistry PY - 2001 TI - An alternative method for the certification of the sulfur mass fraction in coal Standard Reference Materials ER -