@article{VMUMM_1995_1_a0,
     author = {L. A. Martynova},
     title = {Normal subgroups of unipotent subgroups of {Chevalley} groups of types  $E_6$, $E_7$, and $E_8$},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {3--6},
     publisher = {mathdoc},
     number = {1},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1995_1_a0/}
}