diff --git a/labdocs/lab5.pdf b/labdocs/lab5.pdf
index 6e71a40..8a2a6fc 100644
Binary files a/labdocs/lab5.pdf and b/labdocs/lab5.pdf differ
diff --git a/lectures/lab5-intro-20131017.pdf b/lectures/lab5-intro-20131017.pdf
new file mode 100644
index 0000000..5f5641e
Binary files /dev/null and b/lectures/lab5-intro-20131017.pdf differ