Kozo Sugiyama, Shojiro Tagawa, Mitsuhiko Toda. Methods for Visual Understanding of Hierarchical System Structures. IEEE Transactions on Systems, Man, and Cybernetics, Part A, 11(2):109-125, 1981. [doi]
@article{SugiyamaTT81, title = {Methods for Visual Understanding of Hierarchical System Structures}, author = {Kozo Sugiyama and Shojiro Tagawa and Mitsuhiko Toda}, year = {1981}, doi = {10.1109/TSMC.1981.4308636}, url = {http://dx.doi.org/10.1109/TSMC.1981.4308636}, researchr = {https://researchr.org/publication/SugiyamaTT81}, cites = {0}, citedby = {0}, journal = {IEEE Transactions on Systems, Man, and Cybernetics, Part A}, volume = {11}, number = {2}, pages = {109-125}, }