@article{1991-ferre
,note={URL: {\tt http://cr.yp.to/\allowbreak bib/\allowbreak entries.html\#\allowbreak 1991/\allowbreak ferre}}
,author={Ricardo Ferr\'e}
,ISSN={0893--9659}
,journal={Applied Mathematics Letters}
,pages={13--17}
,title={{Discrete convolution with modulo operations}}
,volume={4}
,year={1991}
}