Signs of Progression in the Personifications of the Seasons in Roman Mosaics : The Artistic Approach, Procedures and Tools Used by the Craftsmen to Relate the Viewer to the Experience of the Passing of Time. - Kramer, Maja (Türkiye Mozaikleri ve Antik Dönemden Ortaçag Dünyasina Diger Mozaiklerle Paralel Gelisimi :, 2011)