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@article{MS2_1967__20_165980, author = {Egil Heistad}, title = {Excision in {Singular} {Theory.}}, journal = {Mathematica Scandinavica}, pages = {61--64}, publisher = {mathdoc}, volume = {20}, year = {1967}, zbl = {0175.20101}, url = {http://geodesic.mathdoc.fr/item/MS2_1967__20_165980/} }
Egil Heistad. Excision in Singular Theory.. Mathematica Scandinavica, Tome 20 (1967), pp. 61-64. http://geodesic.mathdoc.fr/item/MS2_1967__20_165980/