Re: module for a category

The following has a treatment of modules over groupoids, and the treatment for categories is presumably similar. (with P.J. HIGGINS), ``Crossed complexes and chain complexes with operators'', {\em Math. Proc. Camb. Phil. Soc.} 107 (1990) 33-57. Ronnie Brown http://www.bangor.ac.uk/~mas010/ Paul B Levy wrote:

Hi

Is there a standard reference for the notion of "left module for a category"? (or right module, or bimodule)

Is there any reference in the setting of ordinary categories rather than (or as well as) enriched categories or bicategories?

Thanks Paul

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