@article{DOCMA_1998__3__a12,
     author = {Sch\"affler, Meike},
     title = {Partition regular systems of linear inequalities},
     journal = {Documenta mathematica},
     pages = {149--187},
     publisher = {mathdoc},
     volume = {3},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_1998__3__a12/}
}