1. The diversity and management of old-growth forests;Spies,1996
2. Ancient Forests;Peterken,1996
3. Literature on old-growth forests of eastern North America;Nowacki;Nat. Areas J,1993
4. Natural disturbance regimes in old-growth northern hardwoods: implications for restoration efforts;Lorimer;J. Forest.,1994
5. Historical development of alternate communities in a hemlock-hardwood forest in northern Michigan, U.S.A.;Davis,1994