@article{MZ_1968__105_170994,
     author = {R.P. Burn},
     title = {Bol {Quasi-Fields} and {Pappus'} {Theorem.}},
     journal = {Mathematische Zeitschrift},
     pages = {351--364},
     publisher = {mathdoc},
     volume = {105},
     year = {1968},
     zbl = {0159.49803},
     url = {http://geodesic.mathdoc.fr/item/MZ_1968__105_170994/}
}