\input zb-basic \input zb-ioport \iteman{io-port 01698753} \itemau{Benzm\"uller, Christoph; Meier, Andreas; Sorge, Volker} \itemti{Distributed assertion retrieval.} \itemso{Buchberger, Bruno (ed.) et al., Mathematical knowledge management: MKM 2001. Electronic proceedings of the 1st international workshop, RISC, Schlo{\ss} Hagenberg, Austria, September 24-26, 2001. Linz: Univ. Linz, 7 p. (2001).} \itemcc{} \itemut{} \itemli{http://www.risc.uni-linz.ac.at/institute/conferences/MKM2001/Proceedings/} \end