Contract with the National Scientific Publishers written 10.12.1954

Application for the appointment as associate professor written 04.03.1933

Oath text written 12.12.1933

Protocol on recording the oath of office written 19.08.1921

Appointment written 03.08.1921

Minutes of the meeting of the Committee of the Library of Classics of Philosophy written 19.01.1953

Review “Why is there something rather than nothing” written n/d