@article{SLC_1996_36_a8,
     author = {S.-G. Hwang and A. R. Kr\"auter},
     title = {A {Comparison} of {Two} {Upper} {Bounds} for the {Permanent} of {(0,1)-Matrices}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {36},
     year = {1996},
     url = {http://geodesic.mathdoc.fr/item/SLC_1996_36_a8/}
}