Varé, Arnaud X.Seifert, Ralf W.2010-09-092010-09-092010-09-09200910.4067/S0718-27242009000200001https://infoscience.epfl.ch/handle/20.500.14299/53489Network MarketThird-party Provision of Conversion Technologies in Network Marketstext::journal::journal article::research article