@article{1250129104, author = {Hahn, Peter}, title = {The $\sigma$ -representations of amenable groupoids}, journal = {Rocky Mountain J. Math.}, volume = {9}, number = {4}, year = {1979}, pages = { 631-640}, language = {en}, url = {http://dml.mathdoc.fr/item/1250129104} }
Hahn, Peter. The σ -representations of amenable groupoids. Rocky Mountain J. Math., Tome 9 (1979) no. 4, pp. 631-640. http://gdmltest.u-ga.fr/item/1250129104/