@article {OA4829,
	title = {Comments on ?Modeling fractional stochastic systems as non-random fractional dynamics driven Brownian motions?},
	journal = {Applied Mathematical Modelling},
	volume = {33},
	number = {5},
	year = {2009},
	note = {n/a},
	pages = {2534{\textendash}2537},
	abstract = {<p>Some results presented in the paper ?Modeling fractional stochastic systems as non-random fractional dynamics driven Brownian motions? ?I. Podlubny, Fractional Differential Equations, Academic Press, San Diego, 1999? are discussed in this paper. The slightly modified Gr{\"u}nwald-Letnikov derivative proposed there is used to deduce some interesting results that are in contradiction with those proposed in the referred paper. Keywords: Fractional calculus; Gr{\"u}nwald-Letnikov derivative; Fractional Brownian motion</p>
},
	url = {http://oa.uninova.pt/4829/},
	author = {Ortigueira, M.D.}
}
