Protokoly 3-go Vserossīĭskago sʺi︠e︡zda Obshchestv vspomnozhenīi︠a︡ chastnomu sluzhebnomu trudu i drugikh odnorodnykh po idei︠e︡ i t︠s︡i︠e︡li, Moskva 1906 g
compiled by A.J.R. Gillespie, sponsored by U.S. Department of Agriculture, Forest Service, Institute of Tropical Forestry, and United Nations Food and Agriculture Organization