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month = {Apr},  pages = {184–196},  }  @article{Geels_2002,  title = {{Technological transitions as evolutionary reconfiguration processes: a multi-level perspective and a case-study}},  volume = {31},  issn = {0048-7333},  url = {http://dx.doi.org/10.1016/s0048-7333(02)00062-8},  doi = {10.1016/s0048-7333(02)00062-8},  number = {8-9},  journal = {Research Policy},  publisher = {Elsevier BV},  author = {Geels, Frank W.},  year = {2002},  month = {Dec},  pages = {1257–1274},  }