\input zb-basic \input zb-ioport \iteman{io-port 70323790} \itemau{Mohy-Ud-Din, Hassan; Muhammad, Abubakr} \itemti{Detecting narrow passages in configuration spaces via spectra of probabilistic roadmaps} \itemso{SAC, 1294-1298 (2010).} \itemcc{} \itemut{} \itemli{doi:10.1145/1774088.1774364} \end