参考文献

Bruns, Winfried, and H Jürgen Herzog. 1998. Cohen-Macaulay Rings. 39. Cambridge university press.

Riehl, Emily. 2014. Category Theory in Context. John Hopkins University. https://math.jhu.edu/~eriehl/context.pdf.

Spaltenstein, N. 1988. “Resolutions of Unbounded Complexes.” Compositio Mathematica 65 (2): 121–54. http://www.numdam.org/item/CM_1988__65_2_121_0/.