- FondsMordell - Papers of Louis Joel Mordell
- Series1-40 - Letters
- File6 - Erdos
- File6.2 - Papers
- Item6.2.1 - 'The Representation of an Integer as the Sum of the Square of a Prime and of a Square Free Integer' by Paul Erdos
- Item6.2.2 - Mathematical notes
- Item6.2.3 - Note on the Integers which are the totient of a product of three primes
- Item6.2.4 - Proof of a mathematical theorem
- Item6.2.5 - A Remarkable peculiarity of the number 30
- Item6.2.6 - A mathematical proof
- Item6.2.7 - Typed and manuscript notes on primes
- Item6.2.8 - Sequence of integers
- Item6.2.9 - Proof of a theorem
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