Wang Wei. Martin s Axiom and embeddings of upper semi-lattices into the Turing degrees. Annals of Pure and Applied Logic, 161(10):1291-1298, 2010. [doi]
@article{Wei10-4,
title = {Martin s Axiom and embeddings of upper semi-lattices into the Turing degrees},
author = {Wang Wei},
year = {2010},
doi = {10.1016/j.apal.2010.04.002},
url = {http://dx.doi.org/10.1016/j.apal.2010.04.002},
researchr = {https://researchr.org/publication/Wei10-4},
cites = {0},
citedby = {0},
journal = {Annals of Pure and Applied Logic},
volume = {161},
number = {10},
pages = {1291-1298},
}