TY - BOOK AU - edited by R Kellner & H M Widmer TI - Analytical chemistry : a modern approach to analyticaql science SN - 3-527-30590-4 U1 - 543 Kel PY - 2004/// CY - WILEY-VCH Verlag Gmbh & co. KGaA, Weinheim KW - Analytical Chemistry ER -