@article{PismaZhETF.45.580, title = {Exciton-exciton interaction and absorption bistability in CdS at low optical excitation levels}, author = {Dneprovskii, V. S. and Klimov, V. I. and Nazvanova, E. V. and Furtichev, A. I.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {45}, issue = {12}, pages = {580}, year = {1987}, doi = {}, url = {http://jetpletters.ru/ps/0/article_18865.shtml}, }