@article{DAN_1981_260_6_a13,
     author = {A. S. Bol'shakov and G. M. Solodovnikov},
     title = {Geomagnetic field intensity in last 400 million year},
     journal = {Doklady Akademii Nauk},
     pages = {1340--1343},
     publisher = {mathdoc},
     volume = {260},
     number = {6},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_260_6_a13/}
}