@book {Laiou1994, title = {Law and Society in Byzantium, 9th-12th Centuries}, year = {1994}, publisher = {Dumbarton Oaks}, organization = {Dumbarton Oaks}, address = {Washington}, issn = { 0-88402-222-6}, author = {Laiou, Angeliki E and Simon, Dieter} } @inbook {Birgmann1976, title = {Byzantinische Rechtslexika}, booktitle = {Fontes Minores}, volume = {2}, year = {1976}, pages = {87-146}, author = {Birgmann, L}, editor = {Simon, Dieter} }