Giannoni, F. A timelike extension of fermat's principle in general relativity. Comparisons with the lightlike case.
Citación estilo ChicagoGiannoni, Fabio. A Timelike Extension of Fermat's Principle in General Relativity. Comparisons With the Lightlike Case.
Cita MLAGiannoni, Fabio. A Timelike Extension of Fermat's Principle in General Relativity. Comparisons With the Lightlike Case.
Precaución: Estas citas no son 100% exactas.