@article{DAN_1970_191_2_a7, author = {M. K. Fage}, title = {The sweep method}, journal = {Doklady Akademii Nauk}, pages = {286--289}, publisher = {mathdoc}, volume = {191}, number = {2}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1970_191_2_a7/} }