@article{10_4064_fm_128_2_91_97,
     author = {T. McKee},
     title = {Dual properties within graph theory},
     journal = {Fundamenta Mathematicae},
     pages = {91--97},
     publisher = {mathdoc},
     volume = {128},
     number = {2},
     year = {1987},
     doi = {10.4064/fm-128-2-91-97},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-128-2-91-97/}
}