@article{00219478,
title = {A concrete analysis of the radical concept.},
journal = {Mathematica Pannonica},
volume = {3},
year = {1992},
pages = {3-15},
zbl = {0783.16011},
language = {en},
url = {http://dml.mathdoc.fr/item/00219478}
}
de la Rosa, B.; van Niekerk, J.S.; Wiegandt, R. A concrete analysis of the radical concept.. Mathematica Pannonica, Tome 3 (1992) pp. 3-15. http://gdmltest.u-ga.fr/item/00219478/