@article{UZERU_2017_51_1_a16,
     author = {A. P. Djotyan and A. A. Avetisyan},
     title = {Excitonic absorption in gapped graphene systems},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {93--96},
     publisher = {mathdoc},
     volume = {51},
     number = {1},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2017_51_1_a16/}
}