W.E. Heraeus Seminar :Bad Honnef, Germany, Ehlers, J., & Friedrich, H. Canonical gravity: From classical to quantum : proceedings of the 117th WE Heraeus seminar held at Bad Honnef, Germany, 13 17 September 1993. Springer.
Style de citation Chicago (17e éd.)W.E. Heraeus Seminar :Bad Honnef, Germany, Jürgen Ehlers, et Helmut Friedrich. Canonical Gravity: From Classical to Quantum : Proceedings of the 117th WE Heraeus Seminar Held at Bad Honnef, Germany, 13 17 September 1993. Berlin [etc.]: Springer.
Style de citation MLA (8e éd.)W.E. Heraeus Seminar :Bad Honnef, Germany, et al. Canonical Gravity: From Classical to Quantum : Proceedings of the 117th WE Heraeus Seminar Held at Bad Honnef, Germany, 13 17 September 1993. Springer.
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