*[http://www-groups.dcs.st-and.ac.uk/~history/PrintHT/Gravitation.html History topic: Theories of gravitation] - School of Mathematics and Statistics, University of St Andrews, Scotland | *[http://www-groups.dcs.st-and.ac.uk/~history/PrintHT/Gravitation.html History topic: Theories of gravitation] - School of Mathematics and Statistics, University of St Andrews, Scotland |