6. Perspektiva kružnic
Perspektiva, GDML_Books, (1951), p. 72-78 / Harvested from
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@inbook{402930,
     title = {6. Perspektiva kru\v znic},
     booktitle = {Perspektiva},
     series = {GDML\_Books},
     publisher = {P\v r\'\i rodov\v edeck\'e nakladatelstv\'\i },
     address = {Praha},
     year = {1951},
     pages = {72-78},
     url = {http://dml.mathdoc.fr/item/402930}
}

 (éd.). 6. Perspektiva kružnic, dans Perspektiva, GDML_Books,  (1951), pp. 72-78. http://gdmltest.u-ga.fr/item/402930/