BUSUIOC, G., and C. C. ELEKES. “Response of Four Russula Species under Copper Sulphate and Lead Acetate Treatments”. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, vol. 41, no. 2, Dec. 2013, pp. 538-45, doi:10.15835/nbha4129146.