General Relativity and Gravitation is a journal of studies in general relativity and related topics published under the auspices of the International Committee on General Relativity and Gravitation. The journal publishes original high-quality research papers on the theoretical and experimental aspects of general relativity and related topics; surveys and review articles on current research in general relativity and gravitation; news regarding conferences and other enterprises of interest to scientists in this field; and book reviews. All manuscripts and editorial correspondence as well as books for review should be submitted to the Editor and authors may propose who among the Associate Editors will deal with their paper. All submitted articles are acknowledged and refereed. For additional information visit the http://www.physik.fu-berlin.de/òhjschmi General Relativity and Gravitation Webpage.