diff -r cd5e8fb64b74 -r 56850f5c73f6 src/notes/admin/__init__.py
--- a/src/notes/admin/__init__.py	Tue Jul 10 15:18:03 2018 +0200
+++ b/src/notes/admin/__init__.py	Wed Jul 18 17:32:09 2018 +0200
@@ -4,7 +4,7 @@
 from django.contrib import admin
 from django.contrib.auth.models import Group
 
-from ..models import User, Note, Session, Protocol, Category
+from ..models import User, Note, Session
 from .auth import UserAdmin
 from .auth import GroupAdmin
 
@@ -18,5 +18,3 @@
 
 admin.site.register(Note)
 admin.site.register(Session)
-admin.site.register(Protocol)
-admin.site.register(Category)