Korotkov, L., Likhovaja, L., Levitsky, R., Zachek, I., & Vdovych, A. (2015). Dielectric, Electromechanical and Elastic Properties of K (NH ) H PO Compounds . Physics and Chemistry of Solid State, 16(1), 116–122. https://doi.org/10.15330/pcss.16.1.116-122