JournalsemVol. 70, No. 3Volume 70, No. 3 (2015) Elemente der Mathematikpp. 89–94On the convergence of thinned harmonic seriesWolfgang Stadjepp. 95–102A characterization of the ellipse related to illumination bodiesJesús Jerónimo-Castropp. 103–116Some observations on the Furstenberg topological spaceRezső L. LovasIstván Mezőpp. 117–124A diophantine equation for sums of consecutive like powersSimon FeltenStefan Müller-Stachpp. 125–130Wolstenholme againChristian AebiGrant Cairnspp. 131–134Aufgabenpp. 135–136Rezensionen