Paul E. Howard, Kyriakos Keremedis, Herman Rubin, Jean E. Rubin. Disjoint Unions of Topological Spaces and Choice. Math. Log. Q., 44:493-508, 1998.
@article{HowardKRR98a, title = {Disjoint Unions of Topological Spaces and Choice}, author = {Paul E. Howard and Kyriakos Keremedis and Herman Rubin and Jean E. Rubin}, year = {1998}, tags = {e-science}, researchr = {https://researchr.org/publication/HowardKRR98a}, cites = {0}, citedby = {0}, journal = {Math. Log. Q.}, volume = {44}, pages = {493-508}, }