@article{10_4153_CMB_1984_006_6,
     author = {Nara, Chi\^e and Sato, Iwao},
     title = {Split {Graphs} with {Specified} {Dilworth} {Numbers}},
     journal = {Canadian mathematical bulletin},
     pages = {43--47},
     year = {1984},
     volume = {27},
     number = {1},
     doi = {10.4153/CMB-1984-006-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1984-006-6/}
}