Authors: Penchev, PN Varmuza, K

Citation: Pn. Penchev et K. Varmuza, Characteristic substructures in sets of organic compounds with similar infrared spectra, COMPUT CHEM, 25(3), 2001, pp. 231-237

Authors: Varmuza, K Penchev, PN Scsibrany, H

Citation: K. Varmuza et al., Large and frequently occurring substructures in organic compounds obtainedby library search of infrared spectra, VIB SPECTR, 19(2), 1999, pp. 407-412

Authors: Penchev, PN Andreev, GN Varmuza, K

Citation: Pn. Penchev et al., Automatic classification of infrared spectra using a set of improved expert-based features, ANALYT CHIM, 388(1-2), 1999, pp. 145-159