%0 Journal Article
%A Udo Hertrich-Jeromin
%T Supplement on curved flats in the space of point pairs and isothermic surfaces: A quaternionic calculus
%J Documenta mathematica
%D 1997
%P 335-350
%V 2
%U http://geodesic.mathdoc.fr/articles/10.4171/dm/33/
%R 10.4171/dm/33
%F 10_4171_dm_33