@article{GDZPPN002041995,
title = {Critical sets in back circulant latin squares.},
journal = {Aequationes mathematicae},
volume = {52},
year = {1996},
pages = {157-179},
zbl = {0859.05025},
url = {http://dml.mathdoc.fr/item/GDZPPN002041995}
}
Donovan, Diane; Cooper, Joan. Critical sets in back circulant latin squares.. Aequationes mathematicae, Tome 52 (1996) pp. 157-179. http://gdmltest.u-ga.fr/item/GDZPPN002041995/