Volume 70, No. 2 (2015)
Elemente der Mathematik
pp. 45–48 A characterization by optimization of the orthocenter of a triangleJean-Baptiste Hiriart-UrrutyPierre-Jean Laurent
pp. 49–54 A new Faà di Bruno type formulaUlrich Abel
pp. 55–66 A probabilistic approach to some binomial identitiesChristophe VignatVictor H. Moll
pp. 67–70 Buffon’s problem with a pivot needleUwe Bäsel
pp. 71–78 On the theorem of the three perpendicularsJin-ichi ItohJoël RouyerCostin Vîlcu
pp. 79–81 On an inequality in involving Basel problemZarif O. IbragimovDiyora F. Salimova
pp. 82–85 Aufgabenpp. 86–88 RezensionenH. R. SchneebeliA. Kolpakov