81* 1975. with Helisten, C. "The detection of 1-piperidinodydlohexanecarbonitrile contamination in illicit preparations of 1-(1-phenylcyclohexyl)piperidine and 1-(1-(2-thienyl)cyclohexyl)piperidine".
81* 1975. with Helisten, C. «The detection of 1-piperidinodydlohexanecarbonitrile contamination in illicit preparations of 1-(1-phenylcyclohexyl)piperidine and 1-(1-(2-thienyl)cyclohexyl)piperidine».