1. The establishment and growth of loblolly pine seedlings on compacted soils;Foil,1967
2. Root penetration of Douglas-fir seedlings into compacted soil;Heilman;For. Sci.,1981
3. Forest Mensuration;Husch,1972
4. Effects of high soil density on seedling root growth of seven northwestern tree species;Minore;USDA For. Serv. Res. Note PNW-112,1969
5. A study of the effects of soil compaction on the early development of seedlings of Douglas-fir and western hemlock;Pearse;Univ. B.C. For. Club. Res. Note 16,1958