David Salesin, Ronen Barzel. Adjustable Tools: An Object-Oriented Interaction Metaphor. ACM Trans. Graph., 12(1):103-107, 1993. [doi]
@article{SalesinB93,
title = {Adjustable Tools: An Object-Oriented Interaction Metaphor},
author = {David Salesin and Ronen Barzel},
year = {1993},
doi = {10.1145/169728.214378},
url = {http://doi.acm.org/10.1145/169728.214378},
tags = {meta-model, Meta-Environment, meta-objects},
researchr = {https://researchr.org/publication/SalesinB93},
cites = {0},
citedby = {0},
journal = {ACM Trans. Graph.},
volume = {12},
number = {1},
pages = {103-107},
}