TY - BOOK ID - 140747458 TI - The photometric determination of cobalt by extraction with β -nitroso- α -naphthol AU - Claassen, A. AU - Daamen, A. PY - 1955 PB - Eindhoven N.V. Philips'Gloeilampenfabrieken DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:140747458 AB - ER -