dx.doi.org/10.1017/S0068246200009326
Papers of the British School at Rome
Department of History

Osborne, J. L. (1979). The portrait of pope leo iv in san clemente, rome: A re-examination of the so-called ‘square’ nimbus, in medieval art (Plate VII). Papers of the British School at Rome, 47, 58–65. doi:10.1017/S0068246200009326