@article{1138847438,
author = {Vanhecke, Lieven},
title = {On $r$-fold $(4,\,2)$- and $f$-products},
journal = {Kodai Math. Sem. Rep.},
volume = {29},
number = {1-2},
year = {1977},
pages = { 162-181},
language = {en},
url = {http://dml.mathdoc.fr/item/1138847438}
}
Vanhecke, Lieven. On $r$-fold $(4,\,2)$- and $f$-products. Kodai Math. Sem. Rep., Tome 29 (1977) no. 1-2, pp. 162-181. http://gdmltest.u-ga.fr/item/1138847438/