1、作者：F.M. Atici, P.W. Eloe,
      标题：Two-point boundary value problems for finite fractional difference equations,
      来源：J. Differ. Equat. Appl., in press, doi:10.1080/10236190903029241.

2、作者： C.S. Goodrich,
      标题： Solutions to a discrete right-focal fractional boundary value problem,
      来源：Int. J. Differ. Equat. 5 (2010), in press.
3、作者：C.S. Goodrich,
      标题：On a discrete fractional three-point boundary value problem,
      来源： J. Differ. Equat. Appl., doi:10.1080/10236198.2010.503240.
4、作者：C.S. Goodrich,
      标题：Some new existence results for fractional difference equations,
      来源：Int. J. Dyn. Syst. Differ. Equat., in press.