@article{NUMA_1970__15_131983,
     author = {B. D\"ORING},
     title = {Das {Tschebyscheff-Verfahren} in {Banach-R\"aumen.}},
     journal = {Numerische Mathematik},
     pages = {175--195},
     publisher = {mathdoc},
     volume = {15},
     year = {1970},
     zbl = {0184.37002},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1970__15_131983/}
}