[1] J. M. Laborde: Une caractérisation locale du graphe du n-cube. journées de Combinatoire, C. Benzaken éditeur, Grenoble 1978, 198-200.

[2] H. M. Mulder: (0, $\lambda$) graphs and n-cubes. Discrete Math. 28 (1979) 179-188. DOI 10.1016/0012-365X(79)90095-5 | MR 0546651 | Zbl 0418.05034

[3] Raò Hebbare J. M. Laborde: Another characterization of hypercubes. Discrete Math. 39 (1982) 161-166. DOI 10.1016/0012-365X(82)90139-X | MR 0675861

[4] G. Burosch J. M. Laborde: Some intersection theorems for structure. To appear in Journal Européen de Combinatoire volume 9 (1988). MR 0947022

[5] G. Burosch I. Havel J. M.Laborde: DM-graphs and a new characterization of hypercubes. Discrete Math. (1988) to appear. MR 1197441

[6] I. Havel J. M. Laborde: On distance monotone graphs. Combinatorica (1988) to appear. MR 1221597