@article{700764,
     title = {Simple categories of topological spaces},
     booktitle = {General Topology and its Relations to Modern Analysis and Algebra},
     series = {GDML\_Books},
     publisher = {Academia Publishing House of the Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1972},
     pages = {203-207},
     mrnumber = {MR0355943},
     zbl = {0329.54021},
     url = {http://dml.mathdoc.fr/item/700764}
}

Hušek, M. Simple categories of topological spaces, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books,  (1972), pp. 203-207. http://gdmltest.u-ga.fr/item/700764/