Registered users receive a variety of benefits including the ability to customize email alerts, create favorite journals list, and save searches.
Please note that a Project Euclid web account does not automatically grant access to full-text content. An institutional or society member subscription is required to view non-Open Access content.
Contact firstname.lastname@example.org with any questions.
Y. Avishai, H. Ekstein "Einstein's equivalence principle. An explicit statement and its derivation from special relativistic presymmetry," Communications in Mathematical Physics, Comm. Math. Phys. 37(3), 193-220, (1974)