@article{1077475195,
author = {Potts, D. H.},
title = {Generalized Laplacians of higher order},
journal = {Duke Math. J.},
volume = {15},
number = {1},
year = {1948},
pages = { 947-951},
language = {en},
url = {http://dml.mathdoc.fr/item/1077475195}
}
Potts, D. H. Generalized Laplacians of higher order. Duke Math. J., Tome 15 (1948) no. 1, pp. 947-951. http://gdmltest.u-ga.fr/item/1077475195/