Temperature studies of optical parameters in (Ag3AsS3)0.6(As2S3)0.4 thin films - I. P. Studenyak; M. M. Kutsyk; Y. Y. Rati; Yu. Izai; S. Kokenyesi; L. Daroci; R. Bohdan (Semiconductor Physics, Quantum Electronics and Optoelectronics, 2015)