1. Detection of amphetamine in air by solid adsorbent preconcentration and gas chromatographic analysis;Lawrence;Anal. Chem.,1985
2. Application of air sampling and ion mobility spectrometry to narcotics detection: A feasibility study;Lawrence;United Nations Bulletin on Narcotics,1985
3. Development of a Portable Gas Chromatograph Explosives Detector;Elias,1981
4. Screening of Letter Mail for Cocaine and Heroin by Air Sampling and GC Analysis;Lawrence,1986
5. The Analysis of Explosives;Yinon,1981