STAN, V., GAMENT, E., CORNEA, C. P., VOAIDEŞ, C., DUŞA, M. and PLOPEANU, G. (2011) “Effects of Heavy Metal from Polluted Soils on the Rhizobium Diversity”, Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 39(1), pp. 88–95. doi: 10.15835/nbha3916081.