@article{700841,
     title = {\"Uber die Quotiententopologie als Spur der Potenz einer Topologie},
     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 = {1967},
     pages = {156-160},
     mrnumber = {MR0233328},
     zbl = {0171.43404},
     url = {http://dml.mathdoc.fr/item/700841}
}

Grimeisen, G. Über die Quotiententopologie als Spur der Potenz einer Topologie, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books,  (1967), pp. 156-160. http://gdmltest.u-ga.fr/item/700841/