Key roles of leaves, stockplant age, and auxin concentration in vegetative propagation of two African mahoganies: Khaya anthotheca Welw. and Khaya ivorensis A. Chev, E. Opuni-Frimpong, D. F. Karnosky, A. J. Storer, J. R. Cobbinah
Michigan Tech Publications

Fine-root biomass and fluxes of soil carbon in young stands of paper birch and trembling aspen as affected by elevated atmospheric CO < inf> 2 and tropospheric O < inf> 3, J. King, K. Pregitzer, D. Zak, J. Sober, J. Isebrands, R. Dickson, G. Hendrey, D. F. Karnosky
Michigan Tech Publications