@book{403889, title = {Princip matematick\'e indukce}, series = {GDML\_Books}, publisher = {Mlad\'a fronta}, address = {Praha}, year = {1977}, language = {cs}, url = {http://dml.mathdoc.fr/item/403889} }
Vrba, Antonín. Princip matematické indukce. GDML_Books (1977), http://gdmltest.u-ga.fr/item/403889/