Lévy noise induced transitions and enhanced stability in a birhythmic van der Pol system René Yamapi, Raoul Mbakob Yonkeu, Giovanni Filatrella and Jürgen Kurths Eur. Phys. J. B, 92 7 (2019) 152 Published online: 10 July 2019 DOI: 10.1140/epjb/e2019-100029-x