@article{DAN_1972_205_5_a18,
     author = {F. M. Urmantsev},
     title = {Thermal inclinations of the {Earth's} surface},
     journal = {Doklady Akademii Nauk},
     pages = {1087--1089},
     publisher = {mathdoc},
     volume = {205},
     number = {5},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1972_205_5_a18/}
}