Bosa, Joan, and Martin S. Christensen. “Appendix to ``Regularity of Villadsen algebras’’: The Failure of the Corona Factorization Property for the Villadsen Algebra $\mathcal{V}_\infty$”. Mathematica Scandinavica 123, no. 1 (August 6, 2018): 142–146. Accessed July 24, 2026. https://journals.msp.org/mscand/article/view/269.