@article{MZ_1993__212_4_174471,
     author = {Stephen Donkin},
     title = {On tilting modules for algebraic groups.},
     journal = {Mathematische Zeitschrift},
     pages = {39--60},
     year = {1993},
     volume = {212},
     number = {4},
     zbl = {0798.20035},
     url = {http://geodesic.mathdoc.fr/item/MZ_1993__212_4_174471/}
}