@article{700793,
     title = {Box products},
     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 = {385-385},
     mrnumber = {MR0394537},
     url = {http://dml.mathdoc.fr/item/700793}
}

Rudin, M. E. Box products, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books,  (1972), p. 385. http://gdmltest.u-ga.fr/item/700793/