1965-1966/11/4

A uniform result on almost primes

Sum-free sets of integers

On the difference π(x) - li(x)

On the divisibility properties of integers (I)

On sums of roots of unity (Solution of two problems of R. M. Robinson)

A refinement of a theorem of Schur on primes in arithmetic progressions

Polynome, welche für gegebene Zahlen Permutationspolynome sind

A summation formula and an identity for a class of Dirichlet series

Ergodische Theorie des Jacobischen Algorithmus

The expression of a polynomial as a sum of three irreducibles