@article{10_21136_MB_2009_140671,
     author = {Bullington, Grady and Eroh, Linda and Winters, Steven J.},
     title = {Bounds concerning the alliance number},
     journal = {Mathematica Bohemica},
     pages = {387--398},
     publisher = {mathdoc},
     volume = {134},
     number = {4},
     year = {2009},
     doi = {10.21136/MB.2009.140671},
     mrnumber = {2597234},
     zbl = {1212.05186},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2009.140671/}
}