The most massive AGB stars.

MLA

Siess, Lionel. “The Most Massive AGB Stars.” Proceedings of the International Astronomical Union, vol. 4, no. S252, Apr. 2008, pp. 297–307. EBSCOhost, https://doi.org/10.1017/S1743921308023077.

APA

Siess, L. (2008). The most massive AGB stars. Proceedings of the International Astronomical Union, 4(S252), 297–307. https://doi.org/10.1017/S1743921308023077

Chicago

Siess, Lionel. 2008. “The Most Massive AGB Stars.” Proceedings of the International Astronomical Union 4 (S252): 297–307. doi:10.1017/S1743921308023077.