@article{700601,
     title = {On an example of Mary Ellen (Estill) Rudin},
     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 = {18-20},
     mrnumber = {MR0461452},
     zbl = {0383.54020},
     url = {http://dml.mathdoc.fr/item/700601}
}

Aarts, Jan M.; Lowen-Colebunders, Eva. On an example of Mary Ellen (Estill) Rudin, dans General topology and its relations to modern analysis and algebra IV, GDML_Books,  (1977), pp. 18-20. http://gdmltest.u-ga.fr/item/700601/