@inbook{403029,
     title = {1. Dopln\v en\'\i\ nazna\v cen\'ych v\'ykon\r u},
     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 = {5-9},
     url = {http://dml.mathdoc.fr/item/403029}
}