Experiment-calculated study on structure formation of thermoelectric material based on solid solutions of bismuth and antimony chalcogenides prepared by hot extrusion method - M. G. Lavrentyev; V. B. Osvensky; M. V. Mezhennyi; A. I. Prostomolotov; V. T. Bublik; N. Y. Tabachkova (Journal of thermoelectricity, 2012)