Enhancement of piezoelectric properties for [poly (vinylidene fluoride)/barium zirconate titanate] nanocompositesO. M. Hemeda, A. Tawfik, M. M. El-Shahawy and K. A. DarwishEur. Phys. J. Plus, 132 8 (2017) 333DOI: https://doi.org/10.1140/epjp/i2017-11601-y