@article{DAN_1983_272_1_a10,
     author = {L. I. Sedov},
     title = {Global time in general relativity},
     journal = {Doklady Akademii Nauk},
     pages = {44--48},
     publisher = {mathdoc},
     volume = {272},
     number = {1},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_272_1_a10/}
}