C. S. Schmidt, L. Mrnka, T. Frantík, M. Bárnet, M. Vosátka, and E. Baldassarre Švecová, “Impact of protein hydrolysate biostimulants on growth of barley and wheat and their interaction with symbionts and pathogens”, AFSci, vol. 29, no. 3, pp. 222–238, Jun. 2020.