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2. Frederick J. Almgren Jr, “Almgren’s Big Regularity Paper: Q-Valued Functions Minimizing Dirichlet’s Integral and the Regularity of Area-Minimizing Rectifiable Currents Up to Codimension 2” (Vladimir Scheffer and Jean E. Taylor, eds.), World Scientific Publishing Co. (2000).
3. http://blogs.princeton.edu/aspire/2009/01/sculpture_at_princeton_the_putnam_collection.html
4. http://www.princeton.edu/main/news/archive/S20/84/49I22/index.xml?section=featured
5. http://www.lera.com/projects/usnj/serraprinceton.htm