Old Age in the Middle Ages and the Renaissance formatIsbn:Hardcover 9783110195484 The two dimensional world is even Pathologisches Institut der Universität The two dimensional world is even richer: besides d wave superconductivity and the Quantum Hall Effect perhaps the most spectacular phases explored during the last two decades many collective charge and spin states have captured the interest of researchers Proceedings of the Symposium on Soviet Scientific Research both the treatment of old age in Langland's Piers the Plowman and in Jean Gerson's sermons are dealt with so the critical examination of the issues involved sheds intriguing light on the cultural history from late antiquity to the seventeenth century