@inbook{402511,
     title = {Derivace},
     booktitle = {Co je a na\v c je vy\v s\v s\'\i\ matematika?},
     series = {GDML\_Books},
     publisher = {Jednota \v cesk\'ych matematik\r u a fysik\r u},
     address = {Praha},
     year = {1942},
     pages = {16-61},
     url = {http://dml.mathdoc.fr/item/402511}
}