@article{10_4064_ap109_3_6,
     author = {Qingliu Yao},
     title = {A class of singular fourth-order boundary value problems with nonhomogeneous nonlinearity},
     journal = {Annales Polonici Mathematici},
     pages = {311--325},
     year = {2013},
     volume = {109},
     number = {3},
     doi = {10.4064/ap109-3-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap109-3-6/}
}