Reihe Lecture Notes in Physics MonographsVolker Perlick × Ray Optics, Fermat’s Principle, and Applications to General Relativity Volker PerlickSpringer BerlinSoftcover2011160,49 € Ray Optics, Fermat’s Principle, and Applications to General Relativity Volker PerlickSpringer BerlineBook2003149,79 € Ray Optics, Fermat’s Principle, and Applications to General Relativity Volker PerlickSpringer BerlinHardcover2000160,49 €