@article{IM2_1987_28_3_a5,
     author = {P. L. Polyakov and G. M. Henkin},
     title = {Homotopy formulas for the $\overline\partial$-operator on $\mathbf CP^n$ and the {Radon--Penrose} transform},
     journal = {Izvestiya. Mathematics },
     pages = {555--587},
     publisher = {mathdoc},
     volume = {28},
     number = {3},
     year = {1987},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1987_28_3_a5/}
}