R. Jengo (Jengo, R.)

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  Superstrings 1987: Proceedings of the 1987 Trieste Spring School on Superstrings
  by Alvarez L. Gaume, M. B. Green
  Softcover, World Scientific Pub Co Inc, ISBN 9971505185 (9971-5-0518-5)
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  Superstrings 87: Proceedings of the 1987
  by L. Alvarezgaume
  Hardcover, World Scientific Pub Co Inc, ISBN 9971502976 (9971-5-0297-6)
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  Superstrings, Supergravity and Unified Theories
  by G. Furlan, J.C. Pati, D. W. Sciama, R. Jengo, Q. Shafi
  Hardcover, World Scientific Pub Co Inc, ISBN 9971500353 (9971-5-0035-3)
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  Superstrings, Unified Theories and Cosmology: Proc of the Summer Workshop on High Energy Physics and Cosmology, Trieste Italy 30 June-15 Aug 1986
  by G. Furian
  Hardcover, World Scientific Pub Co Inc, ISBN 9971502712 (9971-5-0271-2)
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  Superstrings, Unified Theories and Cosmology: Proceedings of the Summer Workshop on High Energy Physics and Cosmology. Trieste, It. Jun 30-Aug 15, 1
  by G. Furlan, R. Jengo
  Softcover, World Scientific Pub Co Inc, ISBN 9971502801 (9971-5-0280-1)