Contemporary Research in Marketing : Proceedings of the 15-th Annual Conference of European Marketing Academy. Vol.1. 1. ed. Helsinki : School of Economics, 1986. 634 s. [Copy count : 1, currently available 1, at library only 0]

MÖLLER, Kristian. Industrial buying behavior of production materials : a conceptual model and analysis. Helsinki : School ofSchool of Economics, 1981. 103 s. The Helsinki School of economics publications, series B-54. [Copy count : 1, currently available 1, at library only 0]