Christopher A. Welty, Louis J. Hoebel. Backtracking: robots that fly, part I. SIGART Bulletin, 11(2):64, 2000. [doi]
@article{WeltyH00a,
title = {Backtracking: robots that fly, part I},
author = {Christopher A. Welty and Louis J. Hoebel},
year = {2000},
doi = {10.1145/337897.338003},
url = {http://doi.acm.org/10.1145/337897.338003},
researchr = {https://researchr.org/publication/WeltyH00a},
cites = {0},
citedby = {0},
journal = {SIGART Bulletin},
volume = {11},
number = {2},
pages = {64},
}