Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{PORMA_2003__60_1_50443, author = {Klaus, Stephan}, title = {Cochain operations and subspace arrangements.}, journal = {Portugaliae mathematica}, pages = {71--98}, publisher = {mathdoc}, volume = {60}, number = {1}, year = {2003}, zbl = {1027.18008}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_2003__60_1_50443/} }
Klaus, Stephan. Cochain operations and subspace arrangements.. Portugaliae mathematica, Tome 60 (2003) no. 1, pp. 71-98. http://geodesic.mathdoc.fr/item/PORMA_2003__60_1_50443/