1. Irregularity strength of trees;Amar;Discrete Math.,1998
2. Irregular networks;Chartrand;Congr. Numer.,1988
3. On the irregularity strength of the m×n grid;Dimitz;J. Graph Theory,1992
4. Irregular networks, regular graphs and integer matrices with distinct row and column sums;Faudree;Discrete Math.,1988
5. R.J. Faudree, J. Lehel, Bounds on the irregularity strength of regular graphs, in: Combinatorics (Eger, (1987)) Colloquia Mathematica Societatis János Bobyai, vol. 52, North-Holland, Amsterdam, 1988, pp. 247–256.