Edwin J. Beggs, John V. Tucker. Can Newtonian systems, bounded in space, time, mass and energy compute all functions?. Theoretical Computer Science, 371(1-2):4-19, 2007. [doi]
@article{BeggsT07,
title = {Can Newtonian systems, bounded in space, time, mass and energy compute all functions?},
author = {Edwin J. Beggs and John V. Tucker},
year = {2007},
doi = {10.1016/j.tcs.2006.10.010},
url = {http://dx.doi.org/10.1016/j.tcs.2006.10.010},
researchr = {https://researchr.org/publication/BeggsT07},
cites = {0},
citedby = {0},
journal = {Theoretical Computer Science},
volume = {371},
number = {1-2},
pages = {4-19},
}