@inbook{403713, title = {2. kapitola. Neutr\'aln\'\i\ a inverzn\'\i\ prvek. Grupa}, booktitle = {Polynomy v modern\'\i\ algeb\v re}, series = {GDML\_Books}, publisher = {Mlad\'a fronta}, address = {Praha}, year = {1970}, pages = {15-28}, url = {http://dml.mathdoc.fr/item/403713} }
(éd.). 2. kapitola. Neutrální a inverzní prvek. Grupa, dans Polynomy v moderní algebře, GDML_Books, (1970), pp. 15-28. http://gdmltest.u-ga.fr/item/403713/