@article{700810,
     title = {Strongly zero-dimensional 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 = {341-344},
     mrnumber = {MR0370533},
     zbl = {0315.54045},
     url = {http://dml.mathdoc.fr/item/700810}
}

Nyikos, P. Strongly zero-dimensional spaces, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books,  (1972), pp. 341-344. http://gdmltest.u-ga.fr/item/700810/