Wave propagation analysis of a size-dependent magneto-electro-elastic heterogeneous nanoplate Farzad Ebrahimi, Ali Dabbagh and Mohammad Reza Barati Eur. Phys. J. Plus, 131 12 (2016) 433 Published online: 19 December 2016 DOI: 10.1140/epjp/i2016-16433-7