@article{FAA_2000_34_2_a8,
     author = {C. Duval and V. Yu. Ovsienko},
     title = {Lorentzian {Worldlines} and the {Schwarzian} {Derivative}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {69--72},
     publisher = {mathdoc},
     volume = {34},
     number = {2},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_2000_34_2_a8/}
}