@article {1416,
	title = {STABILIZATION OF SPECTRAL METHODS FOR THE ANALYSIS OF SINGULAR SYSTEMS USING PIECEWISE-CONSTANT BASIS FUNCTIONS},
	journal = {CIRCUITS SYSTEMS AND SIGNAL PROCESSING},
	volume = {14},
	year = {1995},
	pages = {299{\textendash}316},
	issn = {0278-081X},
	doi = {10.1007/BF01189015},
	url = {http://dx.medra.org/10.1007/BF01189015},
	author = {A. Caiti and G. Cannata}
}
@article {1420,
	title = {SPECTRAL METHODS FOR THE SOLUTION OF LINEAR DESCRIPTOR SYSTEMS USING FOURIER FUNCTIONS},
	journal = {CIRCUITS SYSTEMS AND SIGNAL PROCESSING},
	volume = {13},
	year = {1994},
	pages = {225{\textendash}239},
	issn = {0278-081X},
	doi = {10.1007/BF01188108},
	url = {http://dx.medra.org/10.1007/BF01188108},
	author = {A. Caiti and G. Cannata}
}
@article {1423,
	title = {COMMENTS ON THE PROPERTIES OF THE OPERATIONAL MATRICES OF INTEGRATION AND DIFFERENTIATION FOR FOURIER TRIGONOMETRIC FUNCTIONS},
	journal = {IEEE TRANSACTIONS ON AUTOMATIC CONTROL},
	volume = {38},
	year = {1993},
	pages = {667{\textendash}671},
	issn = {0018-9286},
	doi = {10.1109/9.250546},
	url = {http://dx.medra.org/10.1109/9.250546},
	author = {A. Caiti and G. Cannata}
}
