Einstein, A., ''"On the Generalized Theory of Gravitation"'', April 1950, ''"Scientific American"'', dropped from bibliography of Einstein's papers in Misner, Thorne, and Wheeler's 1973 ''"Gravitation"''. | Einstein, A., ''"On the Generalized Theory of Gravitation"'', April 1950, ''"Scientific American"'', dropped from bibliography of Einstein's papers in Misner, Thorne, and Wheeler's 1973 ''"Gravitation"''. |