@article{1256068145,
author = {Newberger, Stuart M.},
title = {The $\sigma$-symbol of the singular integral operators of calder\'on and zygmund},
journal = {Illinois J. Math.},
volume = {9},
number = {4},
year = {1965},
pages = { 428-443},
language = {en},
url = {http://dml.mathdoc.fr/item/1256068145}
}
Newberger, Stuart M. The σ-symbol of the singular integral operators of calderón and zygmund. Illinois J. Math., Tome 9 (1965) no. 4, pp. 428-443. http://gdmltest.u-ga.fr/item/1256068145/