@article{DAN_1965_162_3_a29,
     author = {R. N. Smirnov and N. M. Karavaev},
     title = {The nature of the systems of conjugate bonds in coals},
     journal = {Doklady Akademii Nauk},
     pages = {597--599},
     publisher = {mathdoc},
     volume = {162},
     number = {3},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_162_3_a29/}
}