Chizhov K, Kryuchkov V. Unfolding method for surface activity density map reconstruction from ambient dose equivalent rate measurements based on solution of Fredholm equation of the 1ˢᵗ kind. Nucl. Sci. and Tech. [Internet]. 2026May18 [cited 2026May24];14(2):11-5. Available from: http://jnst.vn/index.php/nst/article/view/423