Geodesic
A NOTE ON THE RADIUS OF ITERATED LINE GRAPHS
Acta mathematica Universitatis Comenianae, Tome 64 (1995) no. 2 
M. Knor. A NOTE ON THE RADIUS OF ITERATED LINE GRAPHS. Acta mathematica Universitatis Comenianae, Tome 64 (1995) no. 2. http://geodesic.mathdoc.fr/item/AMUC_1995_64_2_a5/
@article{AMUC_1995_64_2_a5,
     author = {M. Knor},
     title = {A {NOTE} {ON} {THE} {RADIUS} {OF} {ITERATED} {LINE} {GRAPHS}},
     journal = {Acta mathematica Universitatis Comenianae},
     year = {1995},
     volume = {64},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/AMUC_1995_64_2_a5/}
}
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Voir la notice de l'article provenant de la source Comenius University

We prove that almost all $i$-iterated line graphs are selfcentric with radius $i+2$. This generalizes the well-known result that almost all graphs are selfcentric with radius two.