JournalsemVol. 65, No. 3Volume 65, No. 3 (2010) Elemente der Mathematikpp. 89–100Laplace, Fourier, and stochastic diffusionT. N. Narasimhanpp. 101–103On a certain problem of Ulam and its generalizationAnup Biswaspp. 104–120Eulersche KnicklastPhilippe CachotMarkus MeierMarcel Steiner-CurtisUrs Wüstpp. 121–126On a remark of Makowski about perfect numbersLuis H. Gallardopp. 127–130Aufgabenpp. 131–132Rezensionen