A Byzantine government in exile

Angold, Michael. A Byzantine government in exile: government and society under the Laskarids of Nicaea, (1204-1261) / Michael Angold . - London : Oxford University Press, 1975 . - xx, 332 p. map. 22 cm. - (Oxford historical monographs )
К.: Бібліогр. : c. 297-313, Index
0-19-821854-0