@article{TM_2000_228_a3,
     author = {A. G. Sergeev and Xian-Yu Zhou},
     title = {Extended {Future} {Tube} {Conjecture}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {32--51},
     publisher = {mathdoc},
     volume = {228},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2000_228_a3/}
}