Mackinnon. „What's This Unit of Russian Spies That Keeps Getting Outed?”, Foreign Policy. [2020. július 2-i dátummal az eredetiből archiválva] „While Unit 29155 is often described as secretive, its tradecraft has at times been sloppy, including implausible cover stories and repeated use of the same aliases. [...] "We only know the failures, because they fail a lot. They may be doing a lot of other things that we don't know about," said Aric Toler, who heads up Bellingcat's investigations in Eastern Europe.”
Mackinnon. „What's This Unit of Russian Spies That Keeps Getting Outed?”, Foreign Policy. [2020. július 2-i dátummal az eredetiből archiválva] „While Unit 29155 is often described as secretive, its tradecraft has at times been sloppy, including implausible cover stories and repeated use of the same aliases. [...] "We only know the failures, because they fail a lot. They may be doing a lot of other things that we don't know about," said Aric Toler, who heads up Bellingcat's investigations in Eastern Europe.”
