ISRN year fix

liuthesis.cls

@@ -6,9 +6,9 @@
 %% Maintainer:
 %% Created: Fri Mar 20 08:25:23 2009 (CET)
 %% Version:
-%% Last-Updated: Tue Mar 15 14:36:19 2022 (+0100)
+%% Last-Updated: Fri Sep 23 13:35:11 2022 (+0200)
 %%           By: Ola
-%%     Update #: 1631
+%%     Update #: 1632
 %% URL:
 %% Keywords:
 %% Compatibility:
@@ -394,6 +394,9 @@
 \RequirePackage[T1]{fontenc}
 \fi
 
+% For failsafe ISRN management
+\RequirePackage{xstring}
+
 
 \ifphd
 \gdef\@degreetype{\@degreeprefix {} doktorsexamen}
@@ -756,7 +759,7 @@
 \fi
 
 \ifstudent
-\newcommand{\isrn}{LIU-\@departmentshort{}/\@area{}-EX-\@level{}-{}-\@publicationyear/\@currentyearthesisnumber-{}-SE}
+\newcommand{\isrn}{LIU-\@departmentshort{}/\@area{}-EX-\@level{}-{}-\StrRight{\@publicationyear}{2}/\@currentyearthesisnumber-{}-SE}
 \fi
 
 \newcommand\makeundergraduatetitle{%