Sj. Rabello et An. Vaidya, BFV QUANTIZATION OF RELATIVISTIC SPINNING PARTICLES WITH A SINGLE BOSONIC CONSTRAINT, Modern physics letters A, 9(20), 1994, pp. 1853-1856
Using the BFV approach we quantize a pseudoclassical model of the spin
-1/2 relativistic particle that contains a single bosonic constraint,
contrary to the usual locally supersymmetric models that display first
and second class constraints.