@article{AMLG_1977__18_137938,
     author = {T.G. McLaughlin},
     title = {A partial comparison of two conditions on the intersections of regressive sets.},
     journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung},
     pages = {159--168},
     publisher = {mathdoc},
     volume = {18},
     year = {1977},
     zbl = {0385.03046},
     url = {http://geodesic.mathdoc.fr/item/AMLG_1977__18_137938/}
}