@article{AMLG_1975__17_137915,
     author = {Klaus Kaiser},
     title = {Quasi-axiomatic classes.},
     journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung},
     pages = {129--134},
     publisher = {mathdoc},
     volume = {17},
     year = {1975},
     zbl = {0331.02032},
     url = {http://geodesic.mathdoc.fr/item/AMLG_1975__17_137915/}
}