@article{SLC_1984_11_a12,
     author = {Wilfried Lex},
     title = {\"Uber positive {L\"osungen} linearer diophantischer {Gleichungen} und einen {Satz} von {Teuffel}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {11},
     year = {1984},
     url = {http://geodesic.mathdoc.fr/item/SLC_1984_11_a12/}
}