Quasi-isometries between non-locally-finite graphs and structure trees
  We prove several criteria for quasi-isometry between non-locally-finite graphs and their structure trees. Results of M\"oller in \cite{moeller92ends2} for locally finite and transitive graphs are generalized. We also give a criterion which describes quasi-isometry by how edge-ends are split up by the cuts of a structure tree. 
Bernhard Kr\"on