@article{700607,
     title = {A technique for constructing examples},
     booktitle = {General topology and its relations to modern analysis and algebra IV},
     series = {GDML\_Books},
     publisher = {Society of Czechoslovak Mathematicians and Physicist},
     address = {Praha},
     year = {1977},
     pages = {111-112},
     mrnumber = {MR1112806},
     zbl = {0365.54019},
     url = {http://dml.mathdoc.fr/item/700607}
}

van Douwen, Eric K. A technique for constructing examples, dans General topology and its relations to modern analysis and algebra IV, GDML_Books,  (1977), pp. 111-112. http://gdmltest.u-ga.fr/item/700607/