@inbook{403593,
title = {2. kapitola. T\v etivov\'y \v cty\v r\'uheln\'\i k},
booktitle = {Kru\v znice},
series = {GDML\_Books},
publisher = {Mlad\'a fronta},
address = {Praha},
year = {1966},
pages = {20-44},
url = {http://dml.mathdoc.fr/item/403593}
}
(éd.). 2. kapitola. Tětivový čtyřúhelník, dans Kružnice, GDML_Books, (1966), pp. 20-44. http://gdmltest.u-ga.fr/item/403593/