85. “Fertilizing of Forest Areas by Amino Acid fertilizers in the Krusne Hory Mountains, Czechoslovakia. Evaluation of initial tests.” Sivi Nova AB. Czechoslovakia 1992 (English).
86. “Report of SILVI NOVA” Evaluation of Initial test in Krusne Hory Mountains. North Boheme, Czechoslovakia”, Sweden, 1992.
Reports on INAGROSA product’s trials on the recuperation of forests damaged by “acid rain” and as correctors of the phytotoxity caused by herbicides
