Newton, Isaac; Chittenden, N. W. Life of Sir Isaac Newton; Adee, Daniel; Motte, Andrew; Hill, Theodore Preston Early American mathematics books CU-BANC (1846). Newton's Principia : the mathematical principles of natural philosophy. University of California Libraries. New-York : Published by Daniel Adee.
Newton, Isaac; Chittenden, N. W. Life of Sir Isaac Newton; Adee, Daniel; Motte, Andrew; Hill, Theodore Preston Early American mathematics books CU-BANC (1846). Newton's Principia : the mathematical principles of natural philosophy. University of California Libraries. New-York : Published by Daniel Adee. p. 88.
Savitt, Steven F. (September 2000), «There's No Time Like the Present (in Minkowski Spacetime)», Philosophy of Science67 (S1): S563-S574, S2CID121275903, doi:10.1086/392846, «citeseerx: 10.1.1.14.6140».
eclipse.co.uk
oe.eclipse.co.uk
A. Einstein (1924), «Über den Äther», Verhandlungen der Schweizerischen Naturforschenden Gesellschaft105 (2): 85-93.. English translation: Concerning the Aether(enlace roto disponible en este archivo).
harvard.edu
adsabs.harvard.edu
Ferraro, Rafael (2007), Einstein's Space-Time: An Introduction to Special and General Relativity, Springer Science & Business Media, Bibcode:2007esti.book.....F, ISBN9780387699462.
Savitt, Steven F. (September 2000), «There's No Time Like the Present (in Minkowski Spacetime)», Philosophy of Science67 (S1): S563-S574, S2CID121275903, doi:10.1086/392846, «citeseerx: 10.1.1.14.6140».
A. Einstein (1924), «Über den Äther», Verhandlungen der Schweizerischen Naturforschenden Gesellschaft105 (2): 85-93.. English translation: Concerning the Aether(enlace roto disponible en este archivo).