Business Recovery Conditions of Private Enterprises after the 2011 Great East Japan Earthquake and Issues on Business Continuity Measures for Large-Scale Disaster Management - A Case Study of Small and Medium-Sized Enterprises in Miyagi -. - Norimasa Nakatani; Osamu Murao; Kimiro Meguro; Kiyomine Terumoto (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016)