\input zb-basic \input zb-ioport \iteman{io-port 70671187} \itemau{Kelly, Jonathan; Saripalli, Srikanth; Sukhatme, Gaurav S.} \itemti{Combined visual and inertial navigation for an unmanned aerial vehicle} \itemso{FSR, 255-264 (2007).} \itemcc{} \itemut{} \itemli{doi:10.1007/978-3-540-75404-6\_24} \end