I now have good versions of files from vol15-16 and vol17-18, thanks to Naresh Kirti.

Still outstanding are

vol31/12_Wada.pdf

* vol32/01_Chenet.pdf
* vol32/02_Emmrich.pdf
* vol32/03_Filigenzi.pdf
* vol32/04_Filliozat.pdf
* vol32/06_Hara.pdf
* vol32/07_Hinuber.pdf
* vol32/08_Kulikov.pdf
* vol32/09_rossella.pdf
* vol32/10_varghese.pdf
* vol32/XXXII_Report.pdf
* vol32/XXXII_reviews.pdf