@inbook{403777, title = {Obsah}, booktitle = {Booleova algebra}, series = {GDML\_Books}, publisher = {Mlad\'a fronta}, address = {Praha}, year = {1973}, pages = {[119]-[119]}, url = {http://dml.mathdoc.fr/item/403777} }
(éd.). Obsah, dans Booleova algebra, GDML_Books, (1973), p. [119]. http://gdmltest.u-ga.fr/item/403777/