@article{00650832,
title = {Measures of Lindel\"of and separability in approach spaces.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {17},
year = {1994},
pages = {597-606},
doi = {10.1155/S0161171294000840},
zbl = {0813.54022},
language = {en},
url = {http://dml.mathdoc.fr/item/00650832}
}
Baekeland, R.; Lowen, R. Measures of Lindelöf and separability in approach spaces.. International Journal of Mathematics and Mathematical Sciences, Tome 17 (1994) pp. 597-606. doi : 10.1155/S0161171294000840. http://gdmltest.u-ga.fr/item/00650832/