Erratum: Mass splitting of the pseudoscalar and vector mesons induced by the homogeneous vacuum gluon field Ja.V. Burdanov, G.V. Efimov, S.N. Nedelko and S.A. Solunin Eur. Phys. J. C, 7 3 (1999) 551 Published online: 11 February 1999 DOI: 10.1007/s100529901065