Peter J. Haas. Sketches get sketchier. Communications of the ACM, 54(8):100, 2011. [doi]
@article{Haas11, title = {Sketches get sketchier}, author = {Peter J. Haas}, year = {2011}, doi = {10.1145/1978542.1978565}, url = {http://doi.acm.org/10.1145/1978542.1978565}, researchr = {https://researchr.org/publication/Haas11}, cites = {0}, citedby = {0}, journal = {Communications of the ACM}, volume = {54}, number = {8}, pages = {100}, }