@article{05632502,
title = {Singular positone and semipositone boundary value problems of nonlinear fractional differential equations.},
journal = {Mathematical Problems in Engineering},
volume = {2009},
year = {2009},
doi = {10.1155/2009/535209},
zbl = {1185.34008},
language = {en},
url = {http://dml.mathdoc.fr/item/05632502}
}
Yuan, Chengjun; Jiang, Daqing; Xu, Xiaojie. Singular positone and semipositone boundary value problems of nonlinear fractional differential equations.. Mathematical Problems in Engineering, Tome 2009 (2009) . doi : 10.1155/2009/535209. http://gdmltest.u-ga.fr/item/05632502/