Katzir (2005) argued that " Poincaré's work should not be seen as an attempt to formulate special relativity, but as an independent attempt to resolve questions in electrodynamics. " Contrary to Miller and others, Katzir thinks that Poincaré's development of electrodynamics led him to the rejection of the pure electromagnetic world view (due to the non-electromagnetic Poincaré stresses introduced in 1905), and Poincaré's theory represents a " relativistic physics " which is guided by the relativity principle. In this physics, however, " Lorentz's theory and Newton's theory remained as the fundamental bases of electrodynamics and gravitation."