Acta Mathematica was founded by Gösta Mittag-Leffler in 1882 and is published by Institut Mittag-Leffler. The journal has a strong international reputation, publishing original research papers in all fields of mathematics.
On the theory of harmonic functions of several variables: II. Behavior near the boundary
Elias M. Stein. (1961)
Some problems of ‘Partitio numerorum’; III: On the expression of a number as a sum of primes
G. H. Hardy, et al. (1923)