@article{ARM_1990_26_1_a0,
     author = {Taskovi\'c, Milan R.},
     title = {Edge theorem for finite partially ordered sets},
     journal = {Archivum mathematicum},
     pages = {1--5},
     year = {1990},
     volume = {26},
     number = {1},
     mrnumber = {1188068},
     zbl = {0727.06005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1990_26_1_a0/}
}