On the nodal lines of second eigenfunctions of the fixed membrane problem.
Commentarii mathematici Helvetici, Tome 65 (1990) no. 3, pp. 96-103
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ZblRolf Pütter. On the nodal lines of second eigenfunctions of the fixed membrane problem.. Commentarii mathematici Helvetici, Tome 65 (1990) no. 3, pp. 96-103. http://geodesic.mathdoc.fr/item/CMH_1990__65_3_140185/
@article{CMH_1990__65_3_140185,
author = {Rolf P\"utter},
title = {On the nodal lines of second eigenfunctions of the fixed membrane problem.},
journal = {Commentarii mathematici Helvetici},
pages = {96--103},
year = {1990},
volume = {65},
number = {3},
zbl = {0705.35003},
url = {http://geodesic.mathdoc.fr/item/CMH_1990__65_3_140185/}
}