Omar de la Cruz, Eric J. Hall, Paul E. Howard, Kyriakos Keremedis, Jean E. Rubin. Metric spaces and the axiom of choice. Math. Log. Q., 49(5):455-466, 2003. [doi]
@article{CruzHHKR03a, title = {Metric spaces and the axiom of choice}, author = {Omar de la Cruz and Eric J. Hall and Paul E. Howard and Kyriakos Keremedis and Jean E. Rubin}, year = {2003}, doi = {10.1002/malq.200310049}, url = {http://dx.doi.org/10.1002/malq.200310049}, tags = {e-science}, researchr = {https://researchr.org/publication/CruzHHKR03a}, cites = {0}, citedby = {0}, journal = {Math. Log. Q.}, volume = {49}, number = {5}, pages = {455-466}, }