@article{1102986505,
author = {Christenson, C. O. and Osborne, R. P.},
title = {Pointlike subsets of a manifold.},
journal = {Pacific J. Math.},
volume = {27},
number = {3},
year = {1968},
pages = { 431-435},
language = {en},
url = {http://dml.mathdoc.fr/item/1102986505}
}
Christenson, C. O.; Osborne, R. P. Pointlike subsets of a manifold.. Pacific J. Math., Tome 27 (1968) no. 3, pp. 431-435. http://gdmltest.u-ga.fr/item/1102986505/