Perlick, V. Fermats principle, Morse theory and applications to the gravitational lens effect.
Style de citation ChicagoPerlick, Volker. Fermats Principle, Morse Theory and Applications to the Gravitational Lens Effect.
Style de citation MLAPerlick, Volker. Fermats Principle, Morse Theory and Applications to the Gravitational Lens Effect.
Attention : ces citations peuvent ne pas être correctes à 100%.