1968/20/3

On a biharmonic function in the unit disc

Objekte des Kartesischen Produktes zweier Mannigfaltigkeiten

The maximum principle for the systems of the difference equations

On some linear operators defined by double integrals

On cosine and sine functional equations

Sur la notion d'objet géométrique attaché, I

Diophantine equations involving primes, II

Asymptotic behaviour of harmonic polynomials bounded on a compact set

Corrigendum to "A generalized hypergeometric polynomial"

Errata (vol. XX, fasc.3)