@misc{Avril_Adolphe_d'_(1822–1904)_Héraclius,,
 author={Avril, Adolphe d' (1822–1904)},
 howpublished={online},
 publisher={Duprat},
 language={fre},
 type={szkice},
 title={Héraclius, ou la Question d'Orient au VIIe siècle. Étude historique},
 keywords={Herakliusz (574-641)},
}