00582nam a2200145Ia 4500 190328s9999||||xx |||||||||||||| ||und|| NITIL NITIL 21st 658.8 L484M Leeflang, Pieter Samuel Hendrik Mathematical models in marketing a survey, the stage of development, some extensions and applications Pieter Samuel Hendrik Leeflang Leiden H E Stenfert Kroese 1974 vii, 216p. Marketing-Management; Marketing-Mathematical models; Marketing-Decision-Making; Consumer behavior BKS 25607 25607