@article{GDZPPN002026295,
title = {Very Slowly Varying Functions. (Short Communications).},
journal = {Aequationes mathematicae},
volume = {8},
year = {1972},
pages = {191-192},
url = {http://dml.mathdoc.fr/item/GDZPPN002026295}
}
Erdös, P.; Ash, J. Marshall; Rubel, L.A. Very Slowly Varying Functions. (Short Communications).. Aequationes mathematicae, Tome 8 (1972) pp. 191-192. http://gdmltest.u-ga.fr/item/GDZPPN002026295/