%0 Journal Article %A Dont, Miroslav %T A note on the parabolic variation %J Mathematica Bohemica %D 2000 %P 257-268 %V 125 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/MB.2000.126129/ %R 10.21136/MB.2000.126129 %G en %F 10_21136_MB_2000_126129