%0 Journal Article %A Korec, Ivan %T Lower bounds for perfect rational cuboids %J Mathematica slovaca %D 1992 %P 565-582 %V 42 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1992__42_5_a3/ %G en %F MASLO_1992__42_5_a3