Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Wesley M. Cohen and Daniel A. Levinthal,Fortune Favors the Prepared Firm,Management Science,0025-1909,Institute for Operations Research and the Management Sciences (INFORMS),1994-02,40,2,227-251,https://cir.nii.ac.jp/crid/1361699993529687552,https://doi.org/10.1287/mnsc.40.2.227