Bergant, Zoran, and Janez Grum. “POROSITY EVALUATION OF FLAME-SPRAYED AND HEAT-TREATED NICKEL-BASED COATINGS USING IMAGE ANALYSIS”. Image Analysis and Stereology, vol. 30, no. 1, Mar. 2011, pp. 53-62, doi:10.5566/ias.v30.p53-62.