@article{FAA_1982_16_1_a17,
     author = {Yu. I. Manin and I. B. Penkov},
     title = {Null-geodesics of complex {Einstein} spaces},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {78--79},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1982_16_1_a17/}
}