@article{JRAM_1974__266_151417,
     author = {Bernd Richter},
     title = {Kombinatorik auf geordneten {Mengen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {76--87},
     publisher = {mathdoc},
     volume = {266},
     year = {1974},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1974__266_151417/}
}