TY - JOUR AU - Teodor Atanacković AU - Dragoslav Šumarac TI - In memoriam: Nikola Hajdin (1923--2019) JO - Theoretical and applied mechanics PY - 2019 VL - 46 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TAM_2019_46_2_a0/ ID - TAM_2019_46_2_a0 ER -