@article{700757,
     title = {Properties of expandable 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 = {405-410},
     mrnumber = {MR0362218},
     zbl = {0308.54015},
     url = {http://dml.mathdoc.fr/item/700757}
}

Smith, J. C. Properties of expandable spaces, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books,  (1972), pp. 405-410. http://gdmltest.u-ga.fr/item/700757/