Martin's axiom and separated MAD families. Dow, A. & Shelah, S. Rend. Circ. Mat. Palermo, (2) 61:107–115, 2012.
bibtex   
@article{DwSh:985,
author = {Dow, Alan and Shelah, Saharon},
trueauthor = {Dow, Alan and Shelah, Saharon},
fromwhere = {1,IL},
journal = {Rend. Circ. Mat. Palermo},
pages = {107--115},
title = {{Martin's axiom and separated MAD families}},
volume = {(2) 61},
year = {2012},
}

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