@inbook{403973, title = {X. kapitola. Je\v st\v e n\v ekolik \'uloh}, booktitle = {Kombinatorika}, series = {GDML\_Books}, publisher = {Mlad\'a fronta}, address = {Praha}, year = {1980}, pages = {89-110}, url = {http://dml.mathdoc.fr/item/403973} }
(éd.). X. kapitola. Ještě několik úloh, dans Kombinatorika, GDML_Books, (1980), pp. 89-110. http://gdmltest.u-ga.fr/item/403973/