@article{SM_1983_44_2_a7,
     author = {D. G. Markushevich},
     title = {Numerical invariants of families of lines on some {Fano} varieties},
     journal = {Sbornik. Mathematics},
     pages = {239--260},
     publisher = {mathdoc},
     volume = {44},
     number = {2},
     year = {1983},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1983_44_2_a7/}
}