@article{EJDE_2012__2012__a13,
     author = {Kang,  Ping and Wei,  Zhongli},
     title = {Existence of positive solutions for systems of bending elastic beam equations},
     journal = {Electronic journal of differential equations},
     year = {2012},
     volume = {2012},
     zbl = {1243.34035},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2012__2012__a13/}
}