- Website of Drevo (Kriachkivka) [in Ukrainian]
- Youtube Channel of Drevo (Kyiv)
- Bozhychi, “Ensemble of Authentic Ukrainian Music” website (Karpenko’s group) [in Ua/Ru/Eng]
- Oleksij Zajets’s interview on “Breakfast with 1+1” following his appearance on Holos Kraïny [in Ukrainian]
- Tonia Matvienko’s first unsuccessful blind audition (p. 104) and her “second chance,” in which Ruslana accepts her onto her team
- The Chornobyl Songs Project, produced by the author and under the musical direction of Prof. Yefremov (Smithsonian Folkways, 2015).