@book {4630, title = {Les sceaux byzantins de la collection Henri Seyrig, Biblioth{\`e}que nationale}, year = {1991}, pages = {1 vol. (298-XXVIII p. de pl.)}, isbn = {2-7177-1849-4}, url = {http://catalogue.bnf.fr/ark:/12148/cb370602829}, author = {Jean-Claude Cheynet and C{\'e}cile Morrisson and Werner Seibt and Biblioth{\`e}que nationale (France). D{\'e}partement des monnaies, m{\'e}dailles et antiques} } @book {4650, title = {Catalogue des monnaies byzantines de la Biblioth{\`e}que nationale. 1, D{\textquoteright}Anastase 1er {\`a} Justinien II(491-711)}, year = {1970}, pages = {1 vol. (845 p.)}, publisher = { Biblioth{\`e}que nationale}, organization = { Biblioth{\`e}que nationale}, address = {Paris}, url = {http://catalogue.bnf.fr/ark:/12148/cb35109797j}, author = {C{\'e}cile Morrisson and Biblioth{\`e}que nationale (France). D{\'e}partement des monnaies, m{\'e}dailles et antiques} } @book {4649, title = {Catalogue des monnaies byzantines de la Biblioth{\`e}que nationale. 2, De Philippicus {\`a} Alexis III (711-1204)}, year = {1970}, publisher = {Biblioth{\`e}que nationale}, organization = {Biblioth{\`e}que nationale}, address = {Paris}, url = {http://catalogue.bnf.fr/ark:/12148/cb351195469}, author = {C{\'e}cile Morrisson and Biblioth{\`e}que nationale (France). D{\'e}partement des monnaies, m{\'e}dailles et antiques} }