@article{10_4153_CJM_1985_039_6,
     author = {Stepr\={a}ns, Juris},
     title = {Strongs-Sequences and {Variations} on {Martin's} {Axiom}},
     journal = {Canadian journal of mathematics},
     pages = {730--746},
     year = {1985},
     volume = {37},
     number = {4},
     doi = {10.4153/CJM-1985-039-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1985-039-6/}
}