Media type: E-Article Title: Proper time and Minkowski structure on causal graphs Contributor: Filk, Thomas Published: IOP Publishing, 2001 Published in: Classical and Quantum Gravity, 18 (2001) 14, Seite 2785-2795 Language: Not determined DOI: 10.1088/0264-9381/18/14/311 ISSN: 1361-6382; 0264-9381 Keywords: Physics and Astronomy (miscellaneous) Origination: Footnote: