@article{AM2_1976__14_136594,
     author = {Christopher L. Morgan},
     title = {Autoaddition formulae and algebraic groups.},
     journal = {Aequationes mathematicae},
     pages = {325--344},
     publisher = {mathdoc},
     volume = {14},
     year = {1976},
     zbl = {0335.14008},
     url = {http://geodesic.mathdoc.fr/item/AM2_1976__14_136594/}
}