@BOOK{ Book!D - 69330960,
AUTHOR = "George F. R. Ellis and Ruth M. Williams; diagrams by Mauro Carfora",
TITLE = "Flat and curved space - times",
LIBRARY= "کتابخانه مرکزی و مرکز اسناد دانشگاه شهید مدنی آذربایجان",
SUBJECT = "Special relativity (physics),Space and time",
URL = "/book/69330960/Flat-and-curved-space-times/"}