Couplings of a collection of BF models to matter theories C. Bizdadea, E. M. Cioroianu, S. O. Saliu and S. C. Săraru Eur. Phys. J. C, 41 3 (2005) 401-420 Published online: 15 June 2005 DOI: 10.1140/epjc/s2005-02224-y