Activity Listings
- Letter (in German) from Joseph Springer to LP. [Filed under LP Correspondence: (S: Correspondence, 1960) #381.1]
- Letter from the Liebers, Galois Institute of Mathematics and Art, to LP. RE: Thanks him for his letter. Looks forward to reading his reprints. [Filed under LP Correspondence: (L: Correspondence, 1960) # 231.6]
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