Ivanovs, Aleksandrs, ir Aleksey Varfolomeyev. „The Representation of Facts about Old Russian Charters on the Semantic Web: Attempto Controlled English (ACE)“. Slavistica Vilnensis, t. 64, nr. 1, 2019 m.lapkričio, p. 72-86, https://doi.org/10.15388/SlavViln.2019.64(1).06.