Robert Scheifler, Jim Gettys. The X Window System. ACM Trans. Graph., 5(2):79-109, 1986. [doi]
@article{ScheiflerG86,
title = {The X Window System},
author = {Robert Scheifler and Jim Gettys},
year = {1986},
doi = {10.1145/22949.24053},
url = {http://doi.acm.org/10.1145/22949.24053},
researchr = {https://researchr.org/publication/ScheiflerG86},
cites = {0},
citedby = {0},
journal = {ACM Trans. Graph.},
volume = {5},
number = {2},
pages = {79-109},
}