texts by Lauri Firstenberg ... [et al.] ; texts by Lauri Firstenberg ... [et al. texts by Carl Aigner ... [et al. texts by Hans Belting ... [et al.] texts by Siri Hustved t ... [et al.]. texts by Hans Belting ... [et al. texts by Maurizio Battello ... [et al]. texts by Siri Hustved t ... [et al. texts by Flavia Frigeri...[et al.] texts by Juan Dolores ... [et al.] ;