@article{PismaZhETF.29.489, title = {Anomalies of macroscopic quadrupole moment in an incommensurable phase of the crystal adjacent to the nonpolar and polar phases}, author = {Gladkii, V. V. and Kallaev, S. N. and Kirikov, V. A. and Shuvalov, L. A. and Izrailenko, A. N.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {29}, issue = {8}, pages = {489}, year = {1979}, doi = {}, url = {http://jetpletters.ru/ps/0/article_22129.shtml}, }