High-energy zero-norm states and symmetries of string theory

PEI-MING HO2018-09-102018-09-102005-05http://inspirehep.net/record/681963http://scholars.lib.ntu.edu.tw/handle/123456789/315556High-energy zero-norm states and symmetries of string theoryjournal article10.1103/PhysRevLett.96.1716012-s2.0-34547842761WOS:000237321500007