1. Use of fertilizers to speed pine establishment of reclaimed coal-mine spoil in northeastern Alabama: I. Greenhouse experiments;Bengston,1973
2. Toxicity of acid coal-mine spoils to plants;Berg,1973
3. Studies on acid tolerance of Rhizobium trifolii in culture and soil;Broomfield;Journal of Applied Bacteriology,1980
4. Utilizing N2-fixing woody plant species for distressed soils and the effect of lime on survival;Carpenter;Botanical Gazette,1979
5. Investigating effects of acidic soils on symbiotic nitrogen fixation;Cline,1991