MalvićT., and BastaićB. “Reducing Variogram Uncertainties Using the ‘jack-knifing’ Method, a Case Study of the Stari Gradac – Barcs-Nyugat Field”. Földtani Közlöny, Vol. 138, no. 2, Apr. 2020, pp. 165-74, https://ojs3.mtak.hu/index.php/foldtanikozlony/article/view/2833.