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Periodic orbits, stability and resonances

proceedings of a symposium conducted by the University of São Paulo, the Technical institute of aeronautics of São José dos Campos, and the National observatory of Rio de Janeiro, at the University of São Paulo, São Paulo, Brasil, 4-12 September, 1969

  • International symposium on periodic orbits, stability and resonances San Paolo, Brasile 1969

The interaction of Greek and Babylonian astronomy

an inaugural lecture delivered before the Queen's University of Belfast on 29 January 1964

  • Huxley, George

Lowell and Mars

  • Hoyt, William Graves

Edmond Halley

  • Armitage, Angus

The shadow of the telescope

a biography of John Herschel

  • Buttmann, Günther

Outskirts of galaxy clusters

intense life in the suburbs : proceedings of the 195th colloquium of the international astronomical union, Torino, Italia, March 12-16, 2004

  • Proceedings of the colloquium of the International Astronomical Union 195. Torino, Italia 2004

The interplay among black holes, stars and ism in galactic nuclei

proceedings of the 222th symposium of the international astronomical union, held in Gramado, Rio Grande do Sul, Brazil, March 1-5, 2004

  • Proceedings of the symposium of the International astronomical union 222. Gramado, Rio Grande do Sul, Brazil 2004