@article{GDZPPN002068834,
title = {Morse index and Gauss maps of complete minimal surfaces in Euclidean 3-space.},
journal = {Commentarii mathematici Helvetici},
volume = {68},
year = {1993},
pages = {511-537},
zbl = {0797.58018},
url = {http://dml.mathdoc.fr/item/GDZPPN002068834}
}
Nayatani, Shin. Morse index and Gauss maps of complete minimal surfaces in Euclidean 3-space.. Commentarii mathematici Helvetici, Tome 68 (1993) pp. 511-537. http://gdmltest.u-ga.fr/item/GDZPPN002068834/