M. Douglas McIlroy. Alternatives to extensible languages. SIGPLAN Notices, 4(8):50-52, 1969. [doi]
@article{McIlroy69-0, title = {Alternatives to extensible languages}, author = {M. Douglas McIlroy}, year = {1969}, doi = {10.1145/1115858.1115870}, url = {https://doi.org/10.1145/1115858.1115870}, researchr = {https://researchr.org/publication/McIlroy69-0}, cites = {0}, citedby = {0}, journal = {SIGPLAN Notices}, volume = {4}, number = {8}, pages = {50-52}, }