POPESCU, V., A. KOVACS, M. ALBU, and N. ALBU. “Productivity and Forage Value of Some Perennial Gramineous Species”. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, Vol. 8, no. 2, Aug. 1976, pp. 83-90, doi:10.15835/nbha8280.