Draft talk:Eberhard Kirchberg

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I am a bit confused by the previous rejection of this article, accompanied by the comment "The vast majority of citations are to primary sources." At the time of this comment, the following were 5 of the 11 references, all of which I believe are secondary resources (namely, other authors discussing Eberhard Kirchberg's work and its significance).

- International Congress of Mathematicians, Speaker List

- Rørdam, M. Classification of nuclear, simple C∗-algebras. Classification of nuclear C∗-algebras. Entropy in operator algebras, 1–145, Encyclopaedia Math. Sci., 126, Oper. Alg. Non-commut. Geom., 7, Springer, Berlin, 2002.

- Tikuisis, Aaron; White, Stuart; Winter, Wilhelm Quasidiagonality of nuclear C*-algebras. Ann. of Math. (2) 185, no. 1, 229–284 (2017).

- Winter, Wilhelm Structure of nuclear C*-algebras: from quasidiagonality to classification and back again. Proceedings of the International Congress of Mathematicians --- Rio de Janeiro 2018. Vol. III. Invited lectures, 1801–1823, World Sci. Publ., Hackensack, NJ, 2018.

- Elliott, George A.; Toms, Andrew S. Regularity properties in the classification program for separable amenable C∗-algebras. Bull. Amer. Math. Soc. (N.S.) 45, no. 2, 229--245 (2008)

Since the rejection of the prior version, I have added an additional secondary source, which is a paper by Claire Anantharaman-Delaroche citing the influence of Krichberg's study of exactness of C*-algebras.

If there is still a deficiency in the article causing it to be declined again, I would greatly appreciate guidance in how to improve the article or what kinds of references are needed for the article to meet Wikipedia’s referencing requirements. I'm making a good-faith effort to write an article conforming to Wikipedia's standards, but I am new to Wikipedia editing, so feedback is welcome.