@article{PismaZhETF.52.691, title = {Excitonic and intraatomic absorption in $Nd_2S_3$-activated $TlGaS_2$ single crystals}, author = {Dzhafarova, S. Z. and Ragimova, N. A. and Abutalybov, G. I.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {52}, issue = {1}, pages = {691}, year = {1990}, doi = {}, url = {http://jetpletters.ru/ps/0/article_17433.shtml}, }