@article{GDZPPN002084325, title = {The realization of input-output maps using bialgebras.}, journal = {Forum mathematicum}, volume = {4}, year = {1992}, pages = {109-122}, zbl = {0754.16021}, url = {http://dml.mathdoc.fr/item/GDZPPN002084325} }
Grossmann, Robert; Larson, Richard G. The realization of input-output maps using bialgebras.. Forum mathematicum, Tome 4 (1992) pp. 109-122. http://gdmltest.u-ga.fr/item/GDZPPN002084325/