@article {437, title = {Detection of N-14 and CL-35 in Cocaine Base and Hydrochloride Using NQR, NMR and SQUID Techniques}, journal = {Analytical Chemistry}, year = {1995}, pages = {2256-2263}, author = {Yesinowski, J.Y. and Buess, M.L. and Garroway, A.N. and Zeigeweid, M. and Pines, A.} }