@article {OA4747,
	title = {Generalized Gru?nwald?Letnikov Fractional Derivative and Its Laplace and Fourier Transforms},
	journal = {Journal of Computational and Nonlinear Dynamics},
	volume = {6},
	number = {3},
	year = {2011},
	note = {n/a},
	pages = {034501},
	abstract = {<p>The generalized Gr{\"u}nwald?Letnikov fractional derivative is analyzed in this paper. Its Laplace and Fourier transforms are computed, and some current results are criticized. It is shown that only the forward derivative of a sinusoid exists. This result is used to define the frequency response of a fractional linear system.</p>
},
	url = {http://oa.uninova.pt/4747/},
	author = {Manuel Duarte Ortigueira and Juan J. Trujillo}
}
