@article{CMUC_1988__29_1_a14,
     author = {Helbig, Siegfried},
     title = {On {Carath\'eodory's} and {Krein-Milman's} theorems in fully ordered groups},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {157--167},
     publisher = {mathdoc},
     volume = {29},
     number = {1},
     year = {1988},
     mrnumber = {937558},
     zbl = {0652.06010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1988__29_1_a14/}
}