Janos Simon. A comment on do traces. SIGPLAN Notices, 11(10):49-52, 1976. [doi]
@article{Simon76-2, title = {A comment on do traces}, author = {Janos Simon}, year = {1976}, doi = {10.1145/956020.956026}, url = {https://doi.org/10.1145/956020.956026}, researchr = {https://researchr.org/publication/Simon76-2}, cites = {0}, citedby = {0}, journal = {SIGPLAN Notices}, volume = {11}, number = {10}, pages = {49-52}, }