TY  - JOUR
AU  - Ekholm, Tobias
TI  - Regular homotopy and total curvature I: circle immersions into surfaces
JO  - Algebraic and Geometric Topology
PY  - 2006
SP  - 459
EP  - 492
VL  - 6
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.2140/agt.2006.6.459/
DO  - 10.2140/agt.2006.6.459
ID  - 10_2140_agt_2006_6_459
ER  -