?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Roser&rft.au=Pujadas%2C+Roser&rft.aulast=Pujadas&rft.volume=53&rft.title=Research+Policy&rft.atitle=The+value+and+structuring+role+of+web+APIs+in+digital+innovation+ecosystems%3A+The+case+of+the+online+travel+ecosystem&rft.issue=2&rft.date=1+March+2024&rft.genre=article