@inbook{403088,
     title = {4. Line\'arn\'\i\ (p\v r\'\i mo\v car\'a) perspektiva},
     booktitle = {R\r uzn\'e zp\r usoby zobrazov\'an\'\i\ v deskriptivn\'\i\ geometrii},
     series = {GDML\_Books},
     publisher = {Jednota \v cesk\'ych matematik\r u a fysik\r u},
     address = {Praha},
     year = {1944},
     pages = {24-24},
     url = {http://dml.mathdoc.fr/item/403088}
}