Unitarized Chiral Perturbation Theory in a finite volume: Scalar meson sector M. Döring, U. -G. Meißner, E. Oset and A. Rusetsky Eur. Phys. J. A, 47 11 (2011) 139 Published online: 22 November 2011 DOI: 10.1140/epja/i2011-11139-7