@article{RM_1980_35_2_a7,
     author = {M. T. \`El'baradi},
     title = {Extensions of algebraic groups that are transitive on projective varieties},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {237--238},
     publisher = {mathdoc},
     volume = {35},
     number = {2},
     year = {1980},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1980_35_2_a7/}
}