@article{01002290,
title = {The concept of structural regularity.},
journal = {Portugaliae Mathematica. Nova S\'erie},
volume = {53},
year = {1996},
pages = {435-456},
zbl = {0870.20043},
language = {en},
url = {http://dml.mathdoc.fr/item/01002290}
}
Kopamu, Samuel J.L. The concept of structural regularity.. Portugaliae Mathematica. Nova Série, Tome 53 (1996) pp. 435-456. http://gdmltest.u-ga.fr/item/01002290/