@article{JRAM_1993__436_153499,
     author = {Lars Thams},
     title = {Two classical results in the quantum mixed case.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {129--154},
     publisher = {mathdoc},
     volume = {436},
     year = {1993},
     zbl = {0760.17015},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1993__436_153499/}
}