@Misc{BVMC:657538,
author = {Lange, Jean},
author = {Nicephorus, Callistus},
title = {Nicephori Callisti Xanthopuli..., Ecclesiasticae Historiae libri decem et octo...},
url = {https://www.cervantesvirtual.com/obra/nicephori-callisti-xanthopuli-ecclesiasticae-historiae-libri-decem-et-octo}
}