@article{1077469829,
author = {Martin, N. F. G.},
title = {Generalized condensation points},
journal = {Duke Math. J.},
volume = {28},
number = {1},
year = {1961},
pages = { 507-514},
language = {en},
url = {http://dml.mathdoc.fr/item/1077469829}
}
Martin, N. F. G. Generalized condensation points. Duke Math. J., Tome 28 (1961) no. 1, pp. 507-514. http://gdmltest.u-ga.fr/item/1077469829/