@article{AM2_1973__9_182365,
     author = {JENNIFER WALLIS},
     title = {A {Note} on {Supplementary} {Difference} {Sets} {(Short} {Communication)}},
     journal = {Aequationes mathematicae},
     pages = {306--306},
     publisher = {mathdoc},
     volume = {9},
     year = {1973},
     url = {http://geodesic.mathdoc.fr/item/AM2_1973__9_182365/}
}