@inbook{402678,
     title = {Mno\v zstv\'\i\ uspo\v r\'adan\'a a dob\v re uspo\v r\'adan\'a},
     booktitle = {Po\v cet integr\'aln\'\i },
     series = {GDML\_Books},
     publisher = {Jednota \v ceskoslovensk\'ych mathematik\r u a fysik\r u},
     address = {Praha},
     year = {1931},
     pages = {671-679},
     url = {http://dml.mathdoc.fr/item/402678}
}