• item 61
Anteckningar i Matematik (Problem, satser, förmodanden, mm.)
Softcover notebook, 1936–1950. pp. 1–165, 200–202. Some pages, which do not harm the text, are missing.

• items 678
Three hardcover notebooks, 1948–
Most of the material appeared in Beurling’s papers.
Some results and observation pertaining to complex and harmonic analysis were not published, and might be new even now.
Some pages contain computations, in contrast to the ‘Uppsala notebook’.