The concept of “character” in Dirichlet’s theorem on primes in an arithmetic progression Jeremy AvigadRebecca Morris OriginalPaper 23 July 2013 Pages: 265 - 326
On the history of the Euclidean Steiner tree problem Marcus BrazilRonald L. GrahamMartin Zachariasen OriginalPaper 27 August 2013 Pages: 327 - 354
Whittaker’s analytical dynamics: a biography S. C. Coutinho OriginalPaper 07 November 2013 Pages: 355 - 407