Ken Knowlton. Ted Nelson's Xanadu - Caution - Four Letter Words Ahead. In Douglas R. Dechow, Daniele C. Struppa, editors, Intertwingled - The Work and Influence of Ted Nelson. History of Computing, pages 25-28, Springer, 2015. [doi]
@incollection{Knowlton15,
title = {Ted Nelson's Xanadu - Caution - Four Letter Words Ahead},
author = {Ken Knowlton},
year = {2015},
doi = {10.1007/978-3-319-16925-5_4},
url = {http://dx.doi.org/10.1007/978-3-319-16925-5_4},
researchr = {https://researchr.org/publication/Knowlton15},
cites = {0},
citedby = {0},
pages = {25-28},
booktitle = {Intertwingled - The Work and Influence of Ted Nelson},
editor = {Douglas R. Dechow and Daniele C. Struppa},
series = {History of Computing},
publisher = {Springer},
isbn = {978-3-319-16924-8},
}