@article{GDZPPN002045230,
title = {Topological model theory with an interior operator: consistency properties and back - and forth arguments.},
journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung},
volume = {21},
year = {1981},
pages = {37-54},
zbl = {0472.03027},
url = {http://dml.mathdoc.fr/item/GDZPPN002045230}
}
Makowsky, J.A.; Ziegler, M. Topological model theory with an interior operator: consistency properties and back - and forth arguments.. Archiv für mathematische Logik und Grundlagenforschung, Tome 21 (1981) pp. 37-54. http://gdmltest.u-ga.fr/item/GDZPPN002045230/