@article{MAN_1987__278_164293,
     author = {M.A. Ronan and J. Tits},
     title = {Building {Buildings.}},
     journal = {Mathematische Annalen},
     pages = {291--306},
     year = {1987},
     volume = {278},
     zbl = {0628.51001},
     url = {http://geodesic.mathdoc.fr/item/MAN_1987__278_164293/}
}