Thermal expansion of organic superconductor α-(BEDT-TTF)2 NH4Hg(SCN)4 - A. V. Dolbin; M. V. Khlistuck; V. B. Eselson; V. G. Gavrilko; N. A. Vinnikov; R. M. Basnukaeva; V. A. Konstantinov; K. R. Luchinskii; Y. Nakazawa (Low Temperature Physics, 2019)