@misc{indiciae27eb2c0b0b09, title = {Can Monkeys (Macaca mulatta) Represent Invisible Displacement?}, author = {Filion, Christine M. and Washburn, David A. and Gulledge, Jonathan P.}, year = {1996}, url = {https://ntrs.nasa.gov/citations/19970020679}, note = {Source identifier: 19970020679} }