@article{IM_1970__11_142040,
     author = {E. Bombieri and S. Lang},
     title = {Analytic {Subgroups} of {Group} {Varieties.}},
     journal = {Inventiones mathematicae},
     pages = {1--14},
     publisher = {mathdoc},
     volume = {11},
     year = {1970},
     zbl = {0237.14015},
     url = {http://geodesic.mathdoc.fr/item/IM_1970__11_142040/}
}