@article{MZ_1972__127_171748,
     author = {Phyrne Youens Bacon},
     title = {Strongly {n-Uniform} and {Level} {n-Hjelmslev} {Planes.}},
     journal = {Mathematische Zeitschrift},
     pages = {1--9},
     publisher = {mathdoc},
     volume = {127},
     year = {1972},
     zbl = {0239.50003},
     url = {http://geodesic.mathdoc.fr/item/MZ_1972__127_171748/}
}