@article{SM_1970_10_4_a6,
     author = {B. V. Martynov},
     title = {Three-dimensional varieties with rational sections},
     journal = {Sbornik. Mathematics},
     pages = {569--579},
     publisher = {mathdoc},
     volume = {10},
     number = {4},
     year = {1970},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1970_10_4_a6/}
}