@article{GDZPPN002337886,
title = {Heegaard splittings of (surface) x I are standars.},
journal = {Mathematische Annalen},
volume = {295},
year = {1993},
pages = {549-564},
zbl = {0814.57010},
url = {http://dml.mathdoc.fr/item/GDZPPN002337886}
}
Scharlemann, Martin; Thompson, Abigail. Heegaard splittings of (surface) x I are standars.. Mathematische Annalen, Tome 295 (1993) pp. 549-564. http://gdmltest.u-ga.fr/item/GDZPPN002337886/