Niklaus Wirth. On the Composition of Well-Structured Programs. ACM Computing Surveys, 6(4):247-259, 1974.
@article{Wirth74, title = {On the Composition of Well-Structured Programs}, author = {Niklaus Wirth}, year = {1974}, tags = {composition}, researchr = {https://researchr.org/publication/Wirth74}, cites = {0}, citedby = {0}, journal = {ACM Computing Surveys}, volume = {6}, number = {4}, pages = {247-259}, }