Chang, K.-M.K.-M.ChangTZONG-LIN WU2020-06-112020-06-112002https://scholars.lib.ntu.edu.tw/handle/123456789/498062[SDGs]SDG7More analyses for the service performance of elevator group systemsjournal article10.1080/023292902900313142-s2.0-33746328689https://www.scopus.com/inward/record.uri?eid=2-s2.0-33746328689&doi=10.1080%2f02329290290031314&partnerID=40&md5=e6951e29b70f8ca45c92bceb5dc3dc8b