@article{AIF_1998__48_5_1455_0,
     author = {R\"ohrle, Gerhard},
     title = {On normal abelian subgroups in parabolic groups},
     journal = {Annales de l'Institut Fourier},
     pages = {1455--1482},
     publisher = {Association des Annales de l{\textquoteright}institut Fourier},
     volume = {48},
     number = {5},
     year = {1998},
     doi = {10.5802/aif.1662},
     mrnumber = {99i:20062},
     zbl = {0933.20034},
     language = {en},
     url = {http://archive.numdam.org/articles/10.5802/aif.1662/}
}