Features of structural, energy and kineticcharacteristics of TiNiSn1-xGax thermoelectric material - V. A. Romaka; P.-F. Rogl; L. P. Romaka; Ya. Krayovskyy; Yu. V. Stadnyk; D. Kaczorowski; A. M. Horyn (Journal of thermoelectricity, 2016)