The following publications in Estonian were used in compiling this online exhibition: Balti kett by Lembit Koik (Tallinn, 2004) and Kui väiksed olid suured. Balti kett 25 (When the Small Were Great. Baltic Way 25) by Küllo Arjakas (Tallinn, 2014), also the documentaries Balti tee (1989, directed by Peeter Simm) and Balti loorberid(2009, directed by Toomas Lepp). The main source material was the printed press of the time, especially the newspapers Edasi, Harju Elu, Järva Teataja, Kodumaa, Koit, Läänlane, Leninlik Lipp, Maaleht, Nõukogude Hiiumaa, Noorte Hääl, Õhtuleht, Pärnu Postimees, Reede, Rahva Hääl, Saarte Hääl, Sakala, Võru Teataja, Viru Sõna, Valgamaalane, Vaba Maa, Vooremaa, Ühistöö and Eesti Päevaleht (Stockholm). Additionally, excerpts of personal memories were used, taken from the books Sakalamaa Rahvarinne 1988–1992 (The Popular Front of Sakalamaa 1988–1992, edited by Valli Veigel, Peeter Rahnel; Abja-Paluoja, 2013), Pääsemine helgest tulevikust (The Escape from a Bright Future, Heinz Valk; Tallinn, 2010) and Ivan Orava mälestused ehk Minevik kui helesinised mäed (The Memoirs of Ivan Orav or The Past as Bright Blue Hills, Andrus Kivirähk; Tallinn, 1995) as well as the above periodicals and interviews for the exhibition.
The photographs used are from the collections of the Estonian History Museum, Estonian Film Archives and Estonian State Archives. (Photographers: Harald Leppikson, Ülo Udumäe, Tiit Veeremäe).