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@article{ZAA_2000__19_1_48828, author = {Chryssakis, Th.}, title = {Geometry of numerical ranges in locally -convex *-algebras.}, journal = {Zeitschrift f\"ur Analysis und ihre Anwendungen}, pages = {3--12}, publisher = {mathdoc}, volume = {19}, number = {1}, year = {2000}, zbl = {0965.46037}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ZAA_2000__19_1_48828/} }
Chryssakis, Th. Geometry of numerical ranges in locally -convex *-algebras.. Zeitschrift für Analysis und ihre Anwendungen, Tome 19 (2000) no. 1, pp. 3-12. http://geodesic.mathdoc.fr/item/ZAA_2000__19_1_48828/