@article{02187383,
title = {Positive solutions for the beam equation under certain boundary conditions.},
journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
volume = {2005},
year = {2005},
zbl = {1075.34025},
language = {en},
url = {http://dml.mathdoc.fr/item/02187383}
}
Yang, Bo. Positive solutions for the beam equation under certain boundary conditions.. Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 2005 (2005) . http://gdmltest.u-ga.fr/item/02187383/