iARG is a collection of tools to reconstruct evolutionary histories which include
recombination and back/recurrent mutation events. The algorithms in iARG are based on the Directed Steiner Arborescence
Problem and are described in
Imperfect Ancestral Recombination Graph Reconstruction: A Unifying Model Incorporating
Back/Recurrent Mutation and Recombination Events by Fumei Lam, Ryan Tarpine, and Sorin Istrail (submitted, 2007)