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@article{MAN_1976__224_162906, author = {Harold Donnelly}, title = {Spectrum and the {Fixed} {Point} {Sets} of {Isometries.} {I.}}, journal = {Mathematische Annalen}, pages = {161--170}, publisher = {mathdoc}, volume = {224}, year = {1976}, zbl = {0319.53031}, url = {http://geodesic.mathdoc.fr/item/MAN_1976__224_162906/} }
Harold Donnelly. Spectrum and the Fixed Point Sets of Isometries. I.. Mathematische Annalen, Tome 224 (1976), pp. 161-170. http://geodesic.mathdoc.fr/item/MAN_1976__224_162906/