Rovčanin, B. R., Tatjana, Steševi, D., Keki, D. and Risti, M. (2015) “Antibacterial effect of Herniaria hirsuta, Prunus avium, Rubia tinctorum and Sempervivum tectorum plant extracts on multiple antibiotic resistant Escherichia coli ”, Bioscience Journal . Uberlândia, MG, 31(6), pp. 1852–1861. doi: 10.14393/BJ-v31n6a2015-29091.