Changes in technical efficiency after quality management certification: A DEA approach using difference-in-difference estimation with genetic matching in the hospital industry. - Ivonne Lindlbauer; Jonas Schreyögg; Vera Winter (Eur. J. Oper. Res., 2016)

Operating Room Efficiency before and after Entrance in a Benchmarking Program for Surgical Process Data. - Sara Pedron; Vera Winter; Eva-Maria Oppel; Enno Bialas (J. Medical Syst., 2017)