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@article{MAN_1972__196_162260, author = {Richard Delanghe}, title = {On the {Singularities} of {Functions} with {Values} in a {Clifford} {Algebra.}}, journal = {Mathematische Annalen}, pages = {293--319}, publisher = {mathdoc}, volume = {196}, year = {1972}, zbl = {0236.30050}, url = {http://geodesic.mathdoc.fr/item/MAN_1972__196_162260/} }
Richard Delanghe. On the Singularities of Functions with Values in a Clifford Algebra.. Mathematische Annalen, Tome 196 (1972), pp. 293-319. http://geodesic.mathdoc.fr/item/MAN_1972__196_162260/