P. S. F. Freitas
Kuatiarogue ipyahúva: '''Mba'ekuaarã joguerahaviárava pavẽ''' ha'e peteĩ mba'erekokuaa mba'ekuaarã oñe'ẽva mbaretepyte rehegua, ojapo ha omyesakã Albert Einstein ary 1915 ha 1916 jave,<ref>O'Connor J.J. and E.F. Robertson (1996), "[http://www-history.mcs.st-and.ac.uk/HistTopics/General_relativity.html General relativity]". ''[http://www-history.mcs.st-and.ac.uk/Indexes/Math_Physics.html Mathematical Physics index]'', [http://www.st-andrews.ac.uk/maths/ School…
