@article{FallaLuza:65203,
      author       = "Falla Luza, M. ",
      title        = "<a
                      href="/search?f=title&p=On%20the%20density%20of%20second%20order%20differential%20equations%20without%20algebraic%20solutions%20on&sc=1&ln=en">On
                      the density of second order differential equations without
                      algebraic solutions on</a>",
}