Effect of optical lattice potentials on the vortices in rotating dipolar Bose-Einstein condensates Ramavarmaraja Kishor Kumar and Paulsamy Muruganandam Eur. Phys. J. D, 68 10 (2014) 289 Published online: 07 October 2014 DOI: 10.1140/epjd/e2014-40787-1