%0 Journal Article %T Existence of solutions for systems of self-referred and hereditary differential equations %A Ut Van Le %A Lan T. T. Nguyen %J Electronic Journal of Differential Equations %D 2008 %I Texas State University %X In this paper we investigate the existence of solutions of a system of self-referred and hereditary differential equations. The initial data are assumed to be lower semi-continuous. We also formulate some open questions. %K Self-referred and hereditary differential equations %K linear recursive schemes %K existence of solutions %U http://ejde.math.txstate.edu/Volumes/2008/51/abstr.html