Veijalainen, J.J.VeijalainenWäsch, J.J.WäschPuustjärvi, J.J.PuustjärviTirri, H.H.TirriPihlaiamaa, O.O.Pihlaiamaa2022-03-032022-03-031998https://publica.fraunhofer.de/handle/publica/19413110.1007/978-1-4615-5679-4_3en004005Transaction Models in Cooperative Work - An Overviewbook article