@article{MZ_1991__207_2_174284,
     author = {Ryszard Grzaslewicz and Helmut H. Schaefer},
     title = {Extreme points of the positive part of the unit ball and strictly monotone norm.},
     journal = {Mathematische Zeitschrift},
     pages = {481--484},
     publisher = {mathdoc},
     volume = {207},
     number = {2},
     year = {1991},
     zbl = {0714.46016},
     url = {http://geodesic.mathdoc.fr/item/MZ_1991__207_2_174284/}
}