Günther F. Schrack. Finding neighbors of equal size in linear quadtrees and octrees in constant time. Computer Vision and Image Understanding, 55(3):221-230, 1992. [doi]
@article{Schrack92,
title = {Finding neighbors of equal size in linear quadtrees and octrees in constant time},
author = {Günther F. Schrack},
year = {1992},
doi = {10.1016/1049-9660(92)90022-U},
url = {http://dx.doi.org/10.1016/1049-9660(92)90022-U},
researchr = {https://researchr.org/publication/Schrack92},
cites = {0},
citedby = {0},
journal = {Computer Vision and Image Understanding},
volume = {55},
number = {3},
pages = {221-230},
}