Adoption of environmental innovationsKoos van Dijken, Yvonne Prince, T.J. Wolters, Marco Frey, Giuliano Mussati, Paul Kalff, Ole Hansen, Søren Kerndrup, Bent Søndergård, Eduardo Lopes Rodrigues, Sandra Meredith · First published 1999Open the Tome
Technological development as an evolutionary processJohn Hagedoorn, Paul Kalff, Jaap Korpel · First published 1988Open the Tome
