PLEČKAITIS, Romanas. Polemics on Acknowledgement of N. Copermcus’ System in Lithuanian Schools in the Second Half of the 18th Century. Problemos, [S. l.], v. 2, p. 72–76, 1968. DOI: 10.15388/Problemos.1968.2.5726. Disponível em: https://www.journals.vu.lt/problemos/article/view/5726.. Acesso em: 1 may. 2024.