@article{DAN_1989_305_3_a22,
     author = {Nguyen van Hieu and Nguyen ai Viet},
     title = {Three-branche excitonic polaritons in direct band gap cubic
},
     journal = {Doklady Akademii Nauk},
     pages = {608--610},
     publisher = {mathdoc},
     volume = {305},
     number = {3},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_305_3_a22/}
}