TY - JOUR AU - Zeisler, Rolf AU - Dekner, R. AU - Zeiller, E. AU - Doucha, J. AU - Mader, P. AU - Kucera, J. C2 - Fresenius Journal of Analytical Chemistry DA - 1998-02-01 LA - en M1 - 360 PB - Fresenius Journal of Analytical Chemistry PY - 1998 TI - Single Cell Green Algae Reference Materials with Managed Levels of Heavy Metals ER -