M. Rüstü Karaman and  Tekin Susam and  Fatih Er and  Servet Yaprak and  Osman Karkacıer,  Simulation of Organic Matter Variability on a Sugarbeet Field Using the Computer Based Geostatistical Methods.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2009, vol. 32(8). 254 - 257
    [viewed 18 May 2022]. Available from: https://publications.waset.org/pdf/12640.