KUBIK, Adam. “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”. Historia I Świat, vol. 7, June 2018, pp. 141-56, https://doi.org/10.34739/his.2018.07.09.