@book{400831, title = {Matematika v dev\'\i ti kapitol\'ach}, series = {GDML\_Books}, publisher = {Katedra didaktiky matematiky MFF UK}, address = {Praha}, year = {2008}, language = {cs}, url = {http://dml.mathdoc.fr/item/400831} }
Hudeček, Jiří. Matematika v devíti kapitolách. GDML_Books (2008), http://gdmltest.u-ga.fr/item/400831/