@article{GDZPPN002039672, title = {Binary hyperidentities.}, journal = {Aequationes mathematicae}, volume = {44}, year = {1992}, pages = {154-167}, url = {http://dml.mathdoc.fr/item/GDZPPN002039672} }
Padmanabhan, R.; Penner, P. Binary hyperidentities.. Aequationes mathematicae, Tome 44 (1992) pp. 154-167. http://gdmltest.u-ga.fr/item/GDZPPN002039672/