At least one upcoming paper on polsel
 

[quote=CADO Readme]Better Polynomials for GNFS. Shi Bai, Cyril Bouvier, Alexander Kruppa and
Paul Zimmermann. Mathematics of Computation, to appear.

Root Optimization of Polynomials in the Number Field Sieve, Shi Bai, Richard
Brent and Emmanuel Thomé. Mathematics of Computation, 2015.

Non-Linear Polynomial Selection for the Number Field Sieve, Thomas Prest and
Paul Zimmermann, Journal of Symbolic Computation, special issue in the honour
of Joachim von zur Gathen, volume 47, number 4, pages 401-409, 2011.
[/quote]

Presumably the last has been digested by the relevant people here, but I thought I'd bring attention to the two more recent ones.