HORODNIC, S. A., and C. C. ROIBU. “Collective Growth Patterns Reveal the High Growing Potential of Older Silver Fir Trees in a Primeval Forest in Romania’s Southern Carpathians”. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, Vol. 48, no. 2, June 2020, pp. 1085-99, doi:10.15835/nbha48211949.