Pasonen,H.L., Lu,J., Niskanen,A.M., Seppanen,S.K., Rytkonen,A.,Raunio,J., Pappinen,A., Kasanen,R. and Timonen,S., Effects of sugar beet chitinase IV on root-associated fungal community of transgenic silver birch in a field trial. Planta 230 (5), 973-983 (2009). https://www.ncbi.nlm.nih.gov/nuccore/EU847264