A physical system possessing first-class constraints is quantized by using the Dirac-bracket formalism. The main features of this quantization procedure are analyzed. The model enables us to present a situation where gaugedependent Dirac brackets give origin to gauge-independent equations of motion.
Physical Review. D, Particles and fields. Woodbury. Vol. 24, n. 12 (Dec. 1981), p. 3323-3325