The proof of Claim 6.8 in the Appendix of [1] is incorrect. Here we give a new (and hopefullycorrect) proof.
@article{61,
title = {Corrigendum to Secret sharing on innite graphs},
journal = {Tatra Mountains Mathematical Publications},
volume = {49},
year = {2011},
doi = {10.2478/tatra.v47i0.61},
language = {EN},
url = {http://dml.mathdoc.fr/item/61}
}
Csirmaz, László. Corrigendum to Secret sharing on innite graphs. Tatra Mountains Mathematical Publications, Tome 49 (2011) . doi : 10.2478/tatra.v47i0.61. http://gdmltest.u-ga.fr/item/61/