Olsen, Kasper; Szabo, Richard J. (1999). “Constructing D-branes from K-theory”. 《Advances in Theoretical and Mathematical Physics》 (영어) 3: 889–1025. arXiv:hep-th/9907140. Bibcode:1999hep.th....7140O.
Olsen, Kasper; Szabo, Richard J. (1999). “Constructing D-branes from K-theory”. 《Advances in Theoretical and Mathematical Physics》 (영어) 3: 889–1025. arXiv:hep-th/9907140. Bibcode:1999hep.th....7140O.