When faced with the task of finding old publications without exact data, the key to success lies in a strategic and meticulous approach. Begin by reaching out to specialized institutions—libraries and archives—where even minimal information can become the decisive factor. Utilizing library catalogs helps filter out unnecessary data and focus on relevant materials. It is important to form your inquiry as detailed as possible: even incomplete details, if presented clearly and accurately, will help the institution's staff locate the required document or its fragment more quickly. This method not only speeds up the process but also grants access to unique sources, including rare manuscripts and archival documents. In conclusion, it is essential to emphasize that the precision and structure of the request are the foundation of a successful search, turning every attempt into a step towards new knowledge and discoveries.