@misc{miscfe923e7a,
title   = {Rigid immersions of vector bundles of rank 1 on a surface into IR³},
author = {Gutierrez Vidalon, Carlos and Gutierrez Nunez, J. Miguel and Romero-Fuster, Maria del Carmen and Bringas, Federico Sanchez},
year = {2000},
publisher = {ICMC-USP}
}