@article{DAN_1973_212_5_a18,
     author = {V. V. Sobolev},
     title = {Correlation between the emissivity and absorptivity of medium
},
     journal = {Doklady Akademii Nauk},
     pages = {1096--1098},
     publisher = {mathdoc},
     volume = {212},
     number = {5},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_212_5_a18/}
}