Sakharov's documents

 is a quest item featured in S.T.A.L.K.E.R.: Lost Alpha as a target item during the Documents Thread.

"yan_docs_part9_des"

- Inventory description

Gameplay

 * Obtained from Sakharov as the second reward for completing The expedition.
 * Impossible to achieve with unblemished honour as there is no dialogue to conclude the expedition mission correctly.
 * Only awarded for a 'failed' mission, by having one of the expedition party die.
 * Sakharov relieves the player of the "Old device" deadweight in exchange for the document.

Trivia

 * Referred to in the gamefiles as "yan_docs_part9_name".
 * All of these documents have a base cost value that is irrelevant (unable to trade them away)