@article{10_21136_CMJ_1995_128503, author = {Hanoch, Gershon and Hershkowitz, Daniel}, title = {Forcing sequences of positive integers}, journal = {Czechoslovak Mathematical Journal}, pages = {149--169}, publisher = {mathdoc}, volume = {45}, number = {1}, year = {1995}, doi = {10.21136/CMJ.1995.128503}, mrnumber = {1314537}, zbl = {0848.11036}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1995.128503/} }