Michael Woodger. Supplement to the ALGOL 60 report. Communications of the ACM, 6(1):18-20, 1963. [doi]
@article{Woodger63, title = {Supplement to the ALGOL 60 report}, author = {Michael Woodger}, year = {1963}, doi = {10.1145/366193.366207}, url = {http://doi.acm.org/10.1145/366193.366207}, researchr = {https://researchr.org/publication/Woodger63}, cites = {0}, citedby = {0}, journal = {Communications of the ACM}, volume = {6}, number = {1}, pages = {18-20}, }