The Structure of Locally Finite Two-Connected Graphs
Carl Droms, Brigitte Servatius, Herman Servatius · The Electronic Journal of Combinatorics · 1995
We expand on Tutte's theory of $3$-blocks for $2$-connected graphs, generalizing it to apply to infinite, locally finite graphs, and giving necessary and sufficient conditions for a labeled tree to be the $3$-block tree of a $2$-connected graph.