WASET
    Krasimir I. Ivanov and  Penka S. Zapryanova and  Stefan V. Krustev and  Violina R. Angelova ,  Application of Scanning Electron Microscopy and X-Ray Evaluation of the Main Digestion Methods for Determination of Macroelements in Plant Tissue.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2017, vol. 126(6). 488 - 493
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10007925.