What has the author Gustavs Vilks written?

* The Latvian National Partisan Movement: A History (2006)

* Latvian Legion: Waffen-SS Auxiliary Troops (2007)

* In the Struggle for Latvia (2008)

* The Latvian Legion in the Second World War (2010)

* The Latvian Legions: A Story of Betrayal and Annihilation (2012)

* The Latvian Legion in the Shadow of the Holocaust (2014)

* The Latvian Legions: A History (2016)

* The Latvian Legions: A Documentary History (2018)

* The Latvian Legions: A Photo Album (2020)