Yatsun , N. 2025. Publishing Activities of Ivan Lypa in Odesa: "O. L. S." in the History of Ukrainian Book Printing (Book Science Aspect of the Fund of the Odesa National Scientific Library) . V. N. Karazin Kharkiv National University Bulletin ‘History of Ukraine. Ukrainian Studies: Historical and Philosophical Sciences’. 41, (Dec. 2025), 101-112. DOI:https://doi.org/10.26565/2227-6505-2025-41-09.