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journal = {PHP Institute},  year = {1994},  }  @article{Gunasekaran_1999,  doi = {10.1016/s0925-5273(98)00222-9},  url = {http://dx.doi.org/10.1016/s0925-5273(98)00222-9},  year = {1999},  month = {may},  publisher = {Elsevier {BV}},  volume = {62},  number = {1-2},  pages = {87--105},  author = {A Gunasekaran},  title = {{Agile manufacturing: A framework for research and development}},  journal = {International Journal of Production Economics},  }