@article{10_4064_cm_74_1_99_100,
     author = {Rainer Berntzen},
     title = {Extreme points of the closed unit ball in {C*-algebras}},
     journal = {Colloquium Mathematicum},
     pages = {99--100},
     publisher = {mathdoc},
     volume = {74},
     number = {1},
     year = {1997},
     doi = {10.4064/cm-74-1-99-100},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-74-1-99-100/}
}