@article{GDZPPN002100649, title = {Total curvature for knotted surfaces.}, journal = {Inventiones mathematicae}, volume = {75}, year = {1984}, pages = {25-70}, zbl = {0553.53034}, url = {http://dml.mathdoc.fr/item/GDZPPN002100649} }
Kuiper, N.H.; Meeks, W. III. Total curvature for knotted surfaces.. Inventiones mathematicae, Tome 75 (1984) pp. 25-70. http://gdmltest.u-ga.fr/item/GDZPPN002100649/