TY  - JOUR
AU  - Udo Hertrich-Jeromin
TI  - Supplement on curved flats in the space of point pairs and isothermic surfaces: A quaternionic calculus
JO  - Documenta mathematica
PY  - 1997
SP  - 335
EP  - 350
VL  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.4171/dm/33/
DO  - 10.4171/dm/33
ID  - 10_4171_dm_33
ER  -