Natalya G. Filimonova and  Mariya G. Ozerova and  Irina N. Ermakova,  The Features of Formation of Russian Agriculture’s Sectoral Structure.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2019, vol. 145(1). 10 - 14
    [viewed 29 May 2022]. Available from: https://publications.waset.org/pdf/10009931.