A. KUBIK, “The Kizil Caves as an terminus post quem of the Central and Western Asiatic pear-shape spangenhelm type helmets. The David Collection helmet and its place in the evolution of multisegmented dome helmets”, historiaswiat, vol. 7, pp. 141–156, Jun. 2018, doi: 10.34739/his.2018.07.09.