@article{MAN_1960__141_160820,
     author = {M. Koecher},
     title = {Beitr\"age zu einer {Reduktionstheorie} in {Positivit\"atsbereichen.} {I.}},
     journal = {Mathematische Annalen},
     pages = {384--432},
     publisher = {mathdoc},
     volume = {141},
     year = {1960},
     zbl = {0095.25301},
     url = {http://geodesic.mathdoc.fr/item/MAN_1960__141_160820/}
}