1. Venevtsev, Yu. N., Gagulin, V. V. and Lubimov, V. N. 1982.Seignettemagnetics, 224Moscow: Nauka. (in Russian)
2. Shevchuk, Yu. A., Gagulin, V. V., Korchagina, S. K. and Ivanova, V. V. Abstracts 9th Europ. Meet. Ferroelectr. pp.173Praha, Czech. Republic: ICARIS Ltd.
3. Shevchuk, Yu. A., Gagulin, V. V., Korchagina, S. K. and Ivanova, V. V. Proceed. 5th Russian Scient. Conf. Oxides. Physico-Chemical Properties. pp.498Russia: Ekaterinburg. (in Russian)