For a logistics optimization problem I am working on, the most natural expression of the problem is using a node-arc formulation of the MCNF. It is solved using an LP/MIP solver like CPLEX/Gurobi.
However, for understanding the solution, the arc-path formulation has certain attractive properties - it helps the user understand how different parts of the network's flows relate to each other. It is not possible, right now, to convert the formulation to arc-path.
I am looking for papers or tutorials which discuss how to convert a solution in node-arc form to a solution in arc-path form.