Gravitational waves from pulsars in the context of magnetic ellipticity José C. N. de Araujo, Jaziel G. Coelho and Cesar A. Costa Eur. Phys. J. C, 77 5 (2017) 350 Published online: 26 May 2017 DOI: 10.1140/epjc/s10052-017-4925-3