Cheng, H.H.ChengER-CHENG TSAI2019-12-202019-12-201986https://scholars.lib.ntu.edu.tw/handle/123456789/436818Correspondence between quantum gauge theories without ghost fields and their covariantly quantized theories with ghost fieldsjournal article10.1016/0370-2693(86)90937-82-s2.0-0042012145https://www.scopus.com/inward/record.uri?eid=2-s2.0-0042012145&doi=10.1016%2f0370-2693%2886%2990937-8&partnerID=40&md5=748074979d80adb7f7b95c85a25ec143