Strahler
Path: Library models/Modeling/Spatial Topology/Graphs/Strahler.gaml
https://github.com/gama-platform/gama.old/blob/GAMA_1.9.3/msi.gama.models/models/Modeling/Spatial%20Topology/Graphs/models/Strahler.gaml
Path: Library models/Modeling/Spatial Topology/Graphs/Strahler.gaml
https://github.com/gama-platform/gama.old/blob/GAMA_1.9.3/msi.gama.models/models/Modeling/Spatial%20Topology/Graphs/models/Strahler.gaml