@article{1138846864,
author = {Sario, Leo and Wang, Cecilia},
title = {Harmonic and biharmonic degeneracy},
journal = {Kodai Math. Sem. Rep.},
volume = {25},
number = {1},
year = {1973},
pages = { 392-396},
language = {en},
url = {http://dml.mathdoc.fr/item/1138846864}
}
Sario, Leo; Wang, Cecilia. Harmonic and biharmonic degeneracy. Kodai Math. Sem. Rep., Tome 25 (1973) no. 1, pp. 392-396. http://gdmltest.u-ga.fr/item/1138846864/