DUDRIC, R., et al. “MAGNETOCALORIC AND MAGNETIC PROPERTIES OF NANOCRYSTALLINE La₀.₇₅Pb₀.₂₅MnO₃ SYNTHESIZED BY HIGH ENERGY BALL MILLING”. Studia Universitatis Babeș-Bolyai Physica, vol. 61, no. 2, Dec. 2016, pp. 31-38, https://studia.reviste.ubbcluj.ro/index.php/subbphysica/article/view/5871.