@article{10_4064_fm_122_1_71_76,
     author = {D. Dubois and T. Recio},
     title = {A note on {Robinson's} non-negativity criterion},
     journal = {Fundamenta Mathematicae},
     pages = {71--76},
     publisher = {mathdoc},
     volume = {122},
     number = {1},
     year = {1984},
     doi = {10.4064/fm-122-1-71-76},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-122-1-71-76/}
}