INDREICA, A. “On the Occurence in Romania of Potentillo Albae-Quercetum Petraeae Libbert 1933 Association”. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, vol. 39, no. 1, May 2011, pp. 297-06, doi:10.15835/nbha3915452.