stallings_graphs
stallings_graphs.about_automata
stallings_graphs.about_bases
stallings_graphs.about_folding
stallings_graphs.about_free_factors
stallings_graphs.about_TC_morphisms
stallings_graphs.about_words
stallings_graphs.finitely_generated_subgroup
stallings_graphs.partial_injections
stallings_graphs.partial_injections_misc
FinitelyGeneratedSubgroup
train_track
PartialInjection