Haupt, Irene, “Trumpet players Jon Nelson and Tim Leopold, horn player Adam Unsworth, trombonist Benjamin Herrington, and tubist Raymond Stewart of Slee Sinfonietta performing David Felder's work Canzone XXXI at June in Buffalo 2012,” Digital Collections - University at Buffalo Libraries, accessed September 23, 2020, https://digital.lib.buffalo.edu/items/show/14759.