<i>Programming Erlang - Software for a Concurrent World</i> by Joe Armstrong, Pragmatic Bookshelf, 2007, p. 536. ISBN-10: 193435600X.

Krishna Sankar <i>Programming Erlang - Software for a Concurrent World</i> by Joe Armstrong, Pragmatic Bookshelf, 2007, p. 536. ISBN-10: 193435600X. 259-261 2009 19 J. Funct. Program. 2 http://dx.doi.org/10.1017/S0956796809007163 db/journals/jfp/jfp19.html#Sankar09