@article{PismaZhETF.51.361, title = {Picosecond time-resolved photon echo in system of intrinsic excitations of a medium (mixed $CdSe_xS_{1-x}$ crystals)}, author = {Noll, G. and Siegner, W. and Shevel, S. G. and Gobel, E. O.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {51}, issue = {7}, pages = {361}, year = {1990}, doi = {}, url = {http://jetpletters.ru/ps/0/article_17274.shtml}, }