Kiem-Phong Vo. DAG-A Program that Draws Directed Graphs. Software: Practice and Experience, 18(11):1047-1062, 1988. [doi]
@article{Vo88, title = {DAG-A Program that Draws Directed Graphs}, author = {Kiem-Phong Vo}, year = {1988}, doi = {10.1002/spe.4380181104}, url = {https://doi.org/10.1002/spe.4380181104}, researchr = {https://researchr.org/publication/Vo88}, cites = {0}, citedby = {0}, journal = {Software: Practice and Experience}, volume = {18}, number = {11}, pages = {1047-1062}, }