Investigation of gf0ργ and ga0ργ coupling constants in light cone sum rules C. Aydın, M. Bayar and A.H. Yılmaz Eur. Phys. J. C, 49 2 (2007) 641 Published online: 24 November 2006 DOI: 10.1140/epjc/s10052-006-0041-5