Beiträge zur Biologie des Planktons

Biologie des Menschen in der Geschichte: Beiträge zur Socialgeschichte der Nauzeit aus Frankreich und Skandinavien

Beiträge zur Pathologie und pathologischen Anatomie des Centralnervensystems

Das Kind im 18. Jahrhundert. Beiträge zur Sozialgeschichte des Kindes

GEORGIUS PURKIRCHER, Opera quae supersunt omnia, ed. Miloslaus Okal, Bibliotheca Scriptorum Medii Recentisque Aevorum, new series, vol. 10, Budapest, Akademiai Kiado, 1988, 8vo, pp. 255, £1 1.00. Despite the existence of substantial biography, written in Hungarian in 1941, Georgius Purkircher (c. 1533-77) has never been a name to conjure with. He is known, if at all, only for a long poem on the...

Beiträge zur angewandten Wirtschaftsforschung

Firms may face nancing constraints as a result of rational behaviour of potential lenders due to asymmetric information. In this article, a theoretical model of employment adjustment is developed to derive hypotheses on the short-run impact of nancing constraints on employment at the rm level. A unique rm panel data set for German manufacturing is used to assess the empirical evidence for this ...

Hamburger Beiträge zur Angewandten Mathematik

The well known conjugate gradient algorithm (cg-algorithm), introduced by Hestenes & Stiefel, [1952] intended for real, symmetric, positive definite matrices works as well for complex matrices and has the same typical convergence behavior. It will also work, not generally, but in many cases for hermitean, but not necessarily positive definite matrices. We shall show, that the same behavior is s...