%0 Journal Article %A Borislav Lazarov %A Dimitar Dimitrov %A Martin Dimitrov %A Gergana Peeva %T Outcomes from an experimental teaching - on two types of isoptics for curves with asymptotes %J The Teaching of Mathematics %D 2021 %P 76 %V XXIV %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM2_2021_XXIV_2_a1/ %G en %F TM2_2021_XXIV_2_a1