@article{NUMA_1970__14_131961,
     author = {K.H. HOFFMANN},
     title = {Nichtlineare {Tschebyscheff-Approximation} mit {Nebenbedingungen:} {Anwendungen.}},
     journal = {Numerische Mathematik},
     pages = {383--393},
     publisher = {mathdoc},
     volume = {14},
     year = {1970},
     zbl = {0181.17701},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1970__14_131961/}
}