@misc{ 0-320528928, title = {General relativity and gravitation: GRG journal}, address = {New York, NY u.a.}, publisher = {Springer Science + Business Media B.V.}, address = {; London u.a.}, publisher = {: Kluwer}, year = {1970}, issn = {1572-9532}, language = {English}, note = {Fortsetzung der Druck-Ausgabe}, note = {Gesehen am 02.11.2012}, url = {https://ezb.ur.de/detail.phtml?bibid=TUBFR&jour_id=1163}, url = {https://katalog.ub.tu-freiberg.de/Record/0-320528928} }