@article{GDZPPN00230581X, title = {Note on a Compactification Due to Nielsen and Sloyer.}, journal = {Mathematische Annalen}, volume = {193}, year = {1971}, pages = {167-167}, zbl = {0216.44303}, url = {http://dml.mathdoc.fr/item/GDZPPN00230581X} }
Brümmer, G.C.L. Note on a Compactification Due to Nielsen and Sloyer.. Mathematische Annalen, Tome 193 (1971) p. 167. http://gdmltest.u-ga.fr/item/GDZPPN00230581X/