Thomas R. G. Green. ::::If:::: s and ::::Then:::: s: Is Nesting just for the Birds?. Software: Practice and Experience, 10(5):373-381, 1980.
@article{Green80, title = {::::If:::: s and ::::Then:::: s: Is Nesting just for the Birds?}, author = {Thomas R. G. Green}, year = {1980}, researchr = {https://researchr.org/publication/Green80}, cites = {0}, citedby = {0}, journal = {Software: Practice and Experience}, volume = {10}, number = {5}, pages = {373-381}, }