Townsend, Paul K. (1996). "Four Lectures on M-Theory". High Energy Physics and Cosmology. ICTP Series in Theoretical Physics. 13: 385. arXiv:hep-th/9612121. Bibcode:1997hepcbconf..385T.
Townsend, Paul K. (1996). "Four Lectures on M-Theory". High Energy Physics and Cosmology. ICTP Series in Theoretical Physics. 13: 385. arXiv:hep-th/9612121. Bibcode:1997hepcbconf..385T.