Abhay Ashtekar, Vesselin Petkov
Springer Handbook of Spacetime - 2014 - Springer Berlin Heidelberg 2014 - Springer Handbooks .
9783642419928
Physics and Astronomy
Springer Handbook of Spacetime - 2014 - Springer Berlin Heidelberg 2014 - Springer Handbooks .
9783642419928
Physics and Astronomy