On the mass spectrum of noncommutative Schwinger model in Euclidean ℝ2 space F. Ardalan, M. Ghasemkhani and N. Sadooghi Eur. Phys. J. C, 71 4 (2011) 1606 Published online: 12 April 2011 DOI: 10.1140/epjc/s10052-011-1606-5