TY - JOUR AU - Heller-Zeisler, Susan AU - Parr, R. AU - Zeisler, Rolf C2 - Fresenius Journal of Analytical Chemistry DA - 1998-02-01 LA - en M1 - 360 PB - Fresenius Journal of Analytical Chemistry PY - 1998 TI - Certification of Two Human Hair Reference Materials Issued by the International Atomic Energy Agency ER -