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@article{CM_1987__63_3_391_0, author = {Todorcevic, S. and Velickovic, B.}, title = {Martin's axiom and partitions}, journal = {Compositio Mathematica}, pages = {391--408}, publisher = {Martinus Nijhoff Publishers}, volume = {63}, number = {3}, year = {1987}, mrnumber = {909386}, zbl = {0643.03033}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CM_1987__63_3_391_0/} }
Todorcevic, S.; Velickovic, B. Martin's axiom and partitions. Compositio Mathematica, Tome 63 (1987) no. 3, pp. 391-408. http://geodesic.mathdoc.fr/item/CM_1987__63_3_391_0/