Search for: [References = "Bilgram V., Brem A., Voigt K.\-I., 2008. User\-centric innovations in new product development \- systematic identification of lead users harnessing interactive and collaborative online\-tools. International Journal of Innovation Management, vol. 12, no. 3, pp. 419\-458. https\:\/\/doi.org\/10.1142\/S1363919608002096"]