- FondsMordell - Papers of Louis Joel Mordell
- Series1-40 - Letters
- File6 - Erdos
- File6.2 - Papers
- 12 more...
- Item6.2.13 - Mathematical Theorems
- Item6.2.14 - On the density of the abundant number
- Item6.2.15 - Mathematical workings
- Item6.2.16 - On the normal number of prime factors of p-1
- Item6.2.17 - Uber die Primzahlen gewisser arithmetischer Reihen