Dynamics of interacting quintessence M. Shahalam, S. D. Pathak, M. M. Verma, M. Yu. Khlopov and R. Myrzakulov Eur. Phys. J. C, 75 8 (2015) 395 Published online: 27 August 2015 DOI: 10.1140/epjc/s10052-015-3608-1