@misc{indiciae1c6e2bd37d72, title = {Systems and Methods for Locating a Target in a GPS-Denied Environment}, author = {Murdock, Ronald G. and Mackay, John D. and Cummins, Douglas A.}, year = {2017}, url = {https://ntrs.nasa.gov/citations/20170002901}, note = {Source identifier: 20170002901} }