R. Jaćimović, M. Taseska-Gjorgjijevski, T. Stafilov, G. Jovanovski, and P. Makreski, “APPLICATION OF k0 -INSTRUMENTAL NEUTRON ACTIVATION ANALYSIS FOR DETERMINATION OF MAJOR AND TRACE ELEMENTS IN SOME MANGANESE MINERALS”, GeolMac, vol. 32, no. 2, pp. 159-164, Dec. 2018.