The main papers presented in the two CS Lewis symposia that took place at Iasi University, in 2013 and 2014, have nust been published in the Volume 5, Issue 2, 2014 of the Linguaculture journal, a peer reviewed academic publication of the Linguaculture Centre for (Inter)cultural and (Inter)lingual Research at the Iasi University. You may download HERE the papers published in the current issue of this journal.
There are some very good article published there. I highly recommend it to you, if you are interested in CS Lewis.
The journal also includes my paper called C. S. Lewis, Reluctant Convert and (not so) Reluctant Anglican