@article{SM_1971_15_1_a7,
     author = {V. A. Iskovskikh and Yu. I. Manin},
     title = {Three-dimensional quartics and counterexamples to the {L\"uroth} problem},
     journal = {Sbornik. Mathematics},
     pages = {141--166},
     publisher = {mathdoc},
     volume = {15},
     number = {1},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1971_15_1_a7/}
}