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    ... and its Applications 423 (2007) 119 135 www.elsevier.com/locate/laa Walks and regular integral graphs Dragan Stevanovi ca, , Nair MM de Abreu b , Maria AA de Freitas b , Renata Del-Vecchio ca University of Ni , Serbia and Montenegro b... more
    ... and its Applications 423 (2007) 119 135 www.elsevier.com/locate/laa Walks and regular integral graphs Dragan Stevanovi ca, , Nair MM de Abreu b , Maria AA de Freitas b , Renata Del-Vecchio ca University of Ni , Serbia and Montenegro b Federal University of Rio de Janeiro ...