1. Fuel succession in a western hemlock/ Douglas-fir forest;Agee;Can. J. For. Res.,1987
2. Andrews , H. J. R. W. Cowlin Forest resources of the Douglas-fir region, U.S. Dep. of Agric. Misc. Publ 389 1934
3. Baldwin , E. M. Eocene stratigraphy in southwestern Oregon, Oreg. Dep. Geol. Miner. Ind. Bull 96 1974