Perlick, V. Fermats principle, Morse theory and applications to the gravitational lens effect.
Chicago ZitierstilPerlick, Volker. Fermats Principle, Morse Theory and Applications to the Gravitational Lens Effect.
MLA ZitierstilPerlick, Volker. Fermats Principle, Morse Theory and Applications to the Gravitational Lens Effect.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.