Journal of Graph Theory
Journal of Graph Theory > 79 > 3 > 233 - 248
Journal of Graph Theory > 79 > 3 > 167 - 177
Journal of Graph Theory > 79 > 3 > 213 - 221
Journal of Graph Theory > 79 > 3 > 178 - 212
Journal of Graph Theory > 79 > 3 > 222 - 232