"Most of the review papers in this volume are based on lecture notes from ... the School on Experimental Study of Chaotic Phenomena, held in Tianjin, China, on 5-12 May [1989] ... and the Workshop on Condensed Matter, Molecular and Atomic Physics, held at ... Trieste, Italy in June-August [1989]"--Foreword. Includes bibliographical references. 2. 2. 0. PPABOX811. F200804.