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support REFERENCES * Narain, K.S. _Phys. Lett._ 169B, 41–46 (1986). Article MathSciNet Google Scholar * Lerche, W., Lust, D. & Schellekens, A.N. _Nucl. Phys._ B287, 477–507 (1987).
Article ADS Google Scholar * Kawai, H., Lewellen, D.C. & Tye, S.H.H. _Phys. Rev. Lett._ 57, 1832–1835 (1987). Article ADS Google Scholar * Antoniadis, I., Bachas, C. & Kounnas,
K. _Nucl. Phys._ B289, 87–108 (1987). Article ADS Google Scholar * Green, M.B. _Nature_ 314, 409–414 (1985). Article ADS Google Scholar * Lovelace, C. _Phys. Lett._ 34B, 500–506
(1971). Article CAS Google Scholar * Virasoro, M. _Phys. Rev._ D1, 2933–2936 (1970). ADS Google Scholar * Polyakov, A.M. _J. exp. theor. Phys. Lett._ 12, 381–383 (1970). Google Scholar
* Friedan, D., Qiu, Z. & Shenker, S. _Phys. Rev. Lett._ 52, 1575–1578 (1984). Article ADS MathSciNet Google Scholar * Ellis, J. _Nature_ 323, 595–598 (1986). Article ADS Google
Scholar * Green, M.B. & Schwarz, J.H. _Phys. Lett._ _149_B, 117–122 (1984). * Gross, D.J. _et al._ _Phys. Rev. Lett._ 54, 502–505 (1985). Article ADS MathSciNet CAS Google Scholar
* Candelas, P. _et al._ _Nucl. Phys._ B258, 46–74 (1985). Article ADS CAS Google Scholar * Dixon, L., Harvey, J.A., Vafa, C. & Witten, E. _Nucl. Phys._ B261, 678–686 (1985). Article
ADS CAS Google Scholar * Narain, K., Sarmadi, M. & Vafa, C. Harvard preprint HUTP-86/AO89 (1986). Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Theory Division,
CERN, CH–1211, Geneva, 23, Switzerland John Ellis Authors * John Ellis View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints
and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Ellis, J. Strings in four dimensions. _Nature_ 329, 488–489 (1987). https://doi.org/10.1038/329488a0 Download citation * Issue Date: 08
October 1987 * DOI: https://doi.org/10.1038/329488a0 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable link Sorry, a shareable link
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