Lombardi, p. 61. Andrea Lombardi (a cura di), L'ultima Blitzkrieg - Le campagne della Wehrmacht nei Balcani: Jugoslavia, Grecia e Creta,aprile-maggio 1941, Genova, Effepi, 2008, SBNIT\ICCU\RAV\1713660.
worldcat.org
Terzić, Velimir (1982). Slom Kraljevine Jugoslavije 1941: Uzroci i posledice poraza [The Collapse of the Kingdom of Yugoslavia in 1941: Causes and Consequences of Defeat] (in Serbo-croato). 2. Belgrade: Narodna knjiga. OCLC10276738. Pag. 286.
Terzić, Velimir (1982). Slom Kraljevine Jugoslavije 1941: Uzroci i posledice poraza [The Collapse of the Kingdom of Yugoslavia in 1941: Causes and Consequences of Defeat] (in Serbo-Croatian). 2. Belgrade: Narodna knjiga. OCLC10276738. Pag. 283.