Abdollah Javanmard and  Fariborz Shekari and  Hasan Dehghanian,  Evaluation of Forage Yield and Competition Indices for Intercropped Barley and Legumes.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2014, vol. 86(2). 193 - 196
    [viewed 23 October 2019]. Available from: https://publications.waset.org/pdf/10002248.