Ecological programs for instructional computing on the Macintosh / László OrlóciEntropy and information / László OrlóciCONAPACK: program for canonical analysis of classification tables / László OrlóciCharacter-based community analysis the theory and an application program / Valério De Patta Pillar and László OrlóciMultivariate data analysis in ecology and systematics : a methodological guide to the SYN-TAX 5.0 package / János Podani