@article{IM2_1987_28_1_a9,
     author = {Yu. I. Manin and Ho\`ang L\^e Minh},
     title = {The {Radon--Penrose} transformation for the group~$SO(8)$, and instantons},
     journal = {Izvestiya. Mathematics },
     pages = {189--200},
     publisher = {mathdoc},
     volume = {28},
     number = {1},
     year = {1987},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1987_28_1_a9/}
}