Jacob Lurie (1989)
Lurie J. S. The tale of the Battle of Vytautas with Temir Kutlui. – Dictionary of the scribes and literature of ancient Russia. 2 floor. 14 – 16 centuries. – Leningrad: Science, 1989, Part 2, p. 260 – 261.
Sofia Gracheva (1997)
Gracheva S. Chronical tale of the Battle of Vorskla river. – Proseminary. Medieval studies. Church History, Science and Culture, 1997, vol. 1, p. 8 – 15.
Jaroslav Pilipchuk (2015)
Pilipchuk Ja. V. (Aspects of sources). – Golden Horde Civilization (Kazan), 2015, vol. 8, p. 285 – 298].
In general, we can recognize that chronical tale of the Battle of Vorskla river has not found happiness among researchers. The vast majority of the allegations made by them was definitely wrong.
Full text of section – in the Ukrainian version.