@article{701405,
     title = {Clifford algebra with Reduce},
     booktitle = {Proceedings of the Winter School "Geometry and Physics"},
     series = {GDML\_Books},
     publisher = {Circolo Matematico di Palermo},
     address = {Palermo},
     year = {1987},
     pages = {[11]-19},
     mrnumber = {MR0946708},
     zbl = {0662.68031},
     url = {http://dml.mathdoc.fr/item/701405}
}

Brackx, Freddy; Constales, Denis; Delanghe, Richard; Serras, Herman. Clifford algebra with Reduce, dans Proceedings of the Winter School "Geometry and Physics", GDML_Books,  (1987), pp. [11]-19. http://gdmltest.u-ga.fr/item/701405/