The half-popular compositions traditionally referred to as broadside ballads are a specific type of source. Some of them reflect Biblical, legendary and historical events in Egypt and the Near East. Although the factual importance of such ballads in not great, they have some informative value, because their texts mirror the attitudes and opinions of the lower social classes, in this case clearly influenced by the antithesis of Christianity and Islam, or also Judaism. They show that the authors of broadside ballads kept alive deep-rooted stereotypes, mainly the stereotype of Turks as pagans and tyrants. and Michal Klacek.
Studie Vlasty Reittererové, Jana Andresky a Lubomíra Spurného se podrobně zabývá folkloristický zájmem Aloise Háby v době první světové války (1914 - 1918), zejména oblastí vojenských písní a dosud neznámou sbírkou, která se z Hábou vytvořeného archivního fondu dochovala., Vlasta Reittererová - Jan Andreska - Lubomír Spurný., Rubrika: Studie, and Německé resumé na s. 220, anglický abstrakt na s. 163.