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Dyfyniad Arddull ChicagoKedem, Benjamin. Time Series Analysis by Higher Order Crossings. New York: IEEE, 1994.
Dyfyniad MLAKedem, Benjamin. Time Series Analysis by Higher Order Crossings. IEEE, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.