@article{SM_1974_24_1_a1,
     author = {I. F. Donin},
     title = {Construction of versal deformations for projective algebraic varieties},
     journal = {Sbornik. Mathematics},
     pages = {17--30},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1974},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1974_24_1_a1/}
}