On unconstrained SU(2) gluodynamics with theta angle A.M. Khvedelidze, D.M. Mladenov, H.-P. Pavel and G. Röpke Eur. Phys. J. C, 24 1 (2002) 137-141 Published online: 15 May 2002 DOI: 10.1007/s100520200913