Tomasello, Mario V., Perra, Nicola ORCID: 0000-0002-5559-3064 , Tessone, Claudio J., Karsai, Márton and Schweitzer, Frank (2014) The role of endogenous and exogenous mechanisms in the formation of R&D networks. Scientific Reports, 4:5679. ISSN 2045-2322 (Print), 2045-2322 (Online) (doi:https://doi.org/10.1038/srep05679)