Blumenhagen, R., & Weigand, T. (2009). GUTs in type IIB orientifold compactifications. Arxiv.
Chicago Style (17th ed.) CitationBlumenhagen, Ralph, and Timo Weigand. "GUTs in Type IIB Orientifold Compactifications." Arxiv 2009.
MLA (9th ed.) CitationBlumenhagen, Ralph, and Timo Weigand. "GUTs in Type IIB Orientifold Compactifications." Arxiv, 2009.
Warning: These citations may not always be 100% accurate.