@inbook{403041,
title = {13. \v Rady},
booktitle = {Aritmetick\'e hry a z\'abavy},
series = {GDML\_Books},
publisher = {Jednota \v cesk\'ych matematik\r u a fysik\r u},
address = {Praha},
year = {1942},
pages = {61-67},
url = {http://dml.mathdoc.fr/item/403041}
}
(éd.). 13. Řady, dans Aritmetické hry a zábavy, GDML_Books, (1942), pp. 61-67. http://gdmltest.u-ga.fr/item/403041/