@article{MASLO_2005__55_4_a0,
     author = {Forbes, Anthony D. and Grannell, Mike J. and Griggs, Terry S.},
     title = {On independent sets},
     journal = {Mathematica slovaca},
     pages = {375--377},
     publisher = {mathdoc},
     volume = {55},
     number = {4},
     year = {2005},
     mrnumber = {2181778},
     zbl = {1112.05014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_2005__55_4_a0/}
}