@article{GDZPPN002357763, title = {A natural map from the ext K\"unneth sequence to the Tor one.}, journal = {Mathematica Scandinavica}, volume = {53}, year = {1983}, pages = {203-206}, zbl = {0547.18005}, url = {http://dml.mathdoc.fr/item/GDZPPN002357763} }
Weibull, Thomas. A natural map from the ext Künneth sequence to the Tor one.. Mathematica Scandinavica, Tome 53 (1983) pp. 203-206. http://gdmltest.u-ga.fr/item/GDZPPN002357763/