@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/}
}