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@article{IM_1983__74_143061, author = {I.P. Malta and M.J. Pacifico}, title = {Breaking {Cycles} on {Surfaces.}}, journal = {Inventiones mathematicae}, pages = {43--62}, publisher = {mathdoc}, volume = {74}, year = {1983}, zbl = {0536.58018}, url = {http://geodesic.mathdoc.fr/item/IM_1983__74_143061/} }
I.P. Malta; M.J. Pacifico. Breaking Cycles on Surfaces.. Inventiones mathematicae, Tome 74 (1983), pp. 43-62. http://geodesic.mathdoc.fr/item/IM_1983__74_143061/