Reagle, Joseph (1996). Trust in a cryptographic economy and digital security deposits: Protocols and policies (MS thesis). Cambridge, MA: Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science. hdl:1721.1/11016.
"Faculty Update for 2008–2009"(PDF). Steinhardt School of Culture, Education, and Human Development, New York University. 2008. Retrieved 23 June 2020.