Mw. Deoliveira et al., SUPERSYMMETRIC STRUCTURE OF THE BOSONIC STRING THEORY IN THE BELTRAMIPARAMETRIZATION, Physics letters. Section B, 315(1-2), 1993, pp. 93-97
We show that the bosonic string theory quantized in the Beltrami param
etrization possesses a supersymmetric structure like the vector-supers
ymmetry already observed in topological field theories.