Stalker Bubulyuka's stash

Bubulyuka sends you to X-10 for his book with jokes, before he gives you some weed for Fenrir. You should look near the pipe tied into the knot.
== Walkthrough ==
The stash is a sequence of 3 rucksacks hidden over the X-10 laboratory. Here's a video with all 3:
The last stash requires you to low crouch and lean to be close enough to grab the very edge of it. After grabbing it, a Deathclaw will spawn behind you.
Having obtained the Joke book, return it to Bubulyuka.
== Notes ==
* In this stash, you obtain one of the four circuits required for the Universal Bioradar.
== Bugs ==