@article{GDZPPN00223615X,
title = {The local structure of Nodal set of solutions of Schr\"odinger equation on Riemannian 3-manifolds.},
journal = {Manuscripta mathematica},
volume = {83},
year = {1994},
pages = {255-264},
zbl = {0833.58035},
url = {http://dml.mathdoc.fr/item/GDZPPN00223615X}
}
Chen, Jingyi. The local structure of Nodal set of solutions of Schrödinger equation on Riemannian 3-manifolds.. Manuscripta mathematica, Tome 83 (1994) pp. 255-264. http://gdmltest.u-ga.fr/item/GDZPPN00223615X/