Violina R. Angelova and  Sava G. Tabakov and  Aleksander B. Peltekov and  Krasimir I. Ivanov,  The Effect of Soil Contamination on Chemical Composition and Quality of Aronia (Aronia melanocarpa) Fruits.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2017, vol. 131(11). 787 - 792
    [viewed 16 October 2019]. Available from: https://publications.waset.org/pdf/10008362.