@article{MASLO_1982__32_1_a5,
     author = {Johnson, C. S., Jr. and McMorris, F. R.},
     title = {A note on two comparability graphs},
     journal = {Mathematica slovaca},
     pages = {61--62},
     publisher = {mathdoc},
     volume = {32},
     number = {1},
     year = {1982},
     mrnumber = {648221},
     zbl = {0496.05021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1982__32_1_a5/}
}