1. S. Alm, I. Granstam, C.S.L. Jonson and L. Strömberg, Classification of illegal Leuckart amphetamine by gas chromatographic profiling. Linköping University, Forensic Science Centre, Report 25.
2. Two-level classification of Leuckart amphetamine;Jonson;Forensic Sci. Int.,1994
3. Computer aided retrieval of common-batch members in Leuckart amphetamine profiling;Jonson;J. Forensic Sci.,1993
4. Principal component analysis;Wold;Chemometrics and Intelligent Laboratory Systems,1987