@article{IM2_2003_67_3_a1,
     author = {M. M. Grinenko},
     title = {On a~double cone over {a~Veronese} surface},
     journal = {Izvestiya. Mathematics},
     pages = {421--438},
     year = {2003},
     volume = {67},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2003_67_3_a1/}
}