@incollection{JEDP_1994____A13_0,
     author = {M. Hoffmann-Ostenhof and T. Hoffmann-Ostenhof and N. Nadirashvili},
     title = {Interior {H\"older} estimates for solutions of {Schr\"odinger} equations and the regularity of nodal sets},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {13},
     pages = {1--9},
     publisher = {\'Ecole polytechnique},
     year = {1994},
     zbl = {0948.35501},
     language = {en},
     url = {https://proceedings.centre-mersenne.org/item/JEDP_1994____A13_0/}
}