Grygorchak, I. I.; Ivashchyshyn, F. O.; Borysiuk, A. K.; Shvets, R. Y.; Kulyk, Y. O. CLATHRATE SEMICONDUCTOR MULTIFERROICS, SYNTHESIZED IN SYSTEM GаSE-NаNO2-FеSO4 AND INFLUENCE OF COINTERCALATION. RIC 2017, 7-19.