@article{SM_1989_62_1_a11,
     author = {I. O. Kalinin},
     title = {Realization of quadratic forms by smooth manifolds},
     journal = {Sbornik. Mathematics},
     pages = {177--184},
     publisher = {mathdoc},
     volume = {62},
     number = {1},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1989_62_1_a11/}
}