@article{bwmeta1.element.desklight-82207269-a42d-444e-8c68-b60d663651d3,
author = {A. B\l aszczyk and U. Lorek},
title = {A classification of H-closed extensions},
journal = {Colloquium Mathematicae},
volume = {40},
year = {1978},
pages = {29-33},
zbl = {0386.54014},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-82207269-a42d-444e-8c68-b60d663651d3}
}
A. Błaszczyk; U. Lorek. A classification of H-closed extensions. Colloquium Mathematicae, Tome 40 (1978) pp. 29-33. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-82207269-a42d-444e-8c68-b60d663651d3/