RT Journal T1 Precursors and chemicals frequently used in the illicit manufacture of narcotic drugs and psychotropic substances: report of the International Narcotics Control Board for ... on the implementation of Article 12 of the United Nations convention against illicit traffic in narcotic drugs and psychotropic substances of 1988 LA English PP New York, NY PB United Nations YR 1997 UL https://krimdok.uni-tuebingen.de/Record/244026602 K1 Zeitschrift