Über eine Fragestellung von Gaier und Meyer-König.
Über die Zahlen der Form ...(n) - n und n - ...(n).
Some remarks on subgroups of real numbers
Some personal reminiscences of the mathematical work of Paul Turán
Remarks on number theory II. Some problems on the σ function
Some remark on Euler's φ function
Remarks on number theory III. On addition chains
Extensions de quelques théorèmes de densité
Density Functions for Prime and Relatively Prime Numbers.
Congruent subsets of infinite sets of natural numbers.
On the largest prime factors of n and n+1. (Short Communication).
On a geometric property of Lemniscates.
On the largest prime factors of n and n+1.
On a geometric property of Lemniscates. (Short Communication).
On Sums Involving Reciprocials Of Certain Arithmetical Functions
Über eine geometrische Frage von Fejes-Tóth.
Additive Gruppen mit vorgegebener Hausdorffscher Dimension.
Additive bases with many representations
On definite quadratic forms, which are not the sum of two definite or semi-definite forms
Eine Bemerkung über lineare Kongruenzen
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