- Libro electrónicoThe Geometry of GeodesicsHerbert Busemann
- Libro electrónicoConvex SurfacesHerbert Busemann
- Libro electrónicoProjective Geometry and Projective MetricsHerbert Busemann
- Libro electrónicoMetric Methods of Finsler Spaces and in the Foundations of Geometry. (AM-8)Herbert Busemann
- Libro electrónicoSeries: Dover Books on MathematicsRobert Gilmore
- Libro electrónicoSeries: Annals of Mathematics StudiesRichard Taylor