@article{JRAM_1993__435_153490,
     author = {Wolfgang M. Ruppert},
     title = {Solving algebraic equations in roots of unity.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {119--156},
     publisher = {mathdoc},
     volume = {435},
     year = {1993},
     zbl = {0763.14008},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1993__435_153490/}
}