- Jarmo Moilanen (2009). Impact Structures of the World.
- Monika Kumlehn de Mamani & Ingrid Grambow IMPAKTNAMEN: Namen der [Meteorite; Impakte/Krater; Boliden/Fireballs; Tektite] im Sonnensystem.(2010)
Between Mount Vaivvancohkka and Tornetrask in Northern Sweden there is a strata below Caledonian overthurst nappe. Now planar deformation features (PDF) in quartz has been found in the layer about 20-30 meters thick in its best.It seems that the Vakkejokk breccia is an ejecta layer outside an impact crater now buried by overthrust nappe. (cm.)