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2. Induced automorphisms of free groups and free metabelian groups;Bachmuth;Trans. Amer. Math. Soc.,1966
3. Aut(F) → Aut(FF″) is surjective for free groups F of rank ⩾H;Bachmuth;Trans. Amer. Math. Soc.,1985
4. Aspherical 2-complexes;Cohen;J. Pure Appl. Algebra,1978
5. Classes of automorphisms of free groups of infinite rank;Cohen;Trans. Amer. Math. Soc.,1973