@article{GDZPPN002035359,
title = {Combinatorics of orientation reversing polygons.},
journal = {Aequationes mathematicae},
volume = {28},
year = {1985},
pages = {123-131},
zbl = {0592.05019},
url = {http://dml.mathdoc.fr/item/GDZPPN002035359}
}
Lins, Sóstenes. Combinatorics of orientation reversing polygons.. Aequationes mathematicae, Tome 28 (1985) pp. 123-131. http://gdmltest.u-ga.fr/item/GDZPPN002035359/