Effective field theory analysis of new physics in e + e −→W + W − at a linear collider G. Buchalla, O. Catà, R. Rahn and M. Schlaffer Eur. Phys. J. C, 73 10 (2013) 2589 Published online: 11 October 2013 DOI: 10.1140/epjc/s10052-013-2589-1