@article{1102992206,
author = {Tucker, Richard R.},
title = {The $\delta^{2}$-process and related topics.},
journal = {Pacific J. Math.},
volume = {23},
number = {3},
year = {1967},
pages = { 349-359},
language = {en},
url = {http://dml.mathdoc.fr/item/1102992206}
}
Tucker, Richard R. The $\delta^{2}$-process and related topics.. Pacific J. Math., Tome 23 (1967) no. 3, pp. 349-359. http://gdmltest.u-ga.fr/item/1102992206/