%0 Journal Article %A Peter Giblin %A Graham Reeve %T Equidistants for families of surfaces %J Journal of Singularities %D 2020 %P 97-118 %V 21 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5427/jsing.2020.21f/ %R 10.5427/jsing.2020.21f %F 10_5427_jsing_2020_21f