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Arutyunyan, N.V.; Daugvila, Yu.Yu.; Ostrovskii, B.I.; Sonin, A.S.; Sorkin, E.L.; Strukov, B.A.; Taraskin, S.A., Anomalies of the specific heat at smectic C-smectic A and smectic A-nematic phase transitions in liquid crystals, Sov. Phys. Solid State, 1981, 23, 802-805. [all data]