The ziped file thesexg.zip contains two PS files:
THESEIMP.PS and THESEPAI.PS,
with respectively the odd pages from 1 to 111 and the even pages from 112 à 2,
therefore in the reverse order for easy printing in recto verso.
To obtain the text in recto-verso:
Print the odd pages 1-111 with the file THESEIMP.PS
then reverse the pages obtained to print the even pages 112-2 with
the file THESEPAI.PS