Stationary phase corrections in the process of bosonization of multi-quark interactions A.A. Osipov, B. Hiller, J. Moreira and A.H. Blin Eur. Phys. J. C, 46 1 (2006) 225-233 Published online: 09 March 2006 DOI: 10.1140/epjc/s2006-02488-7