%0 Journal Article %J Harvard Ukrainian Studies %D 1981 %T A Church Slavonic graffito in Hagia Sophia in Constantinople %A Kalavrezou-Maxeiner, Ioli %A Obolensky, Dimitri %B Harvard Ukrainian Studies %V 5 %P 5 – 11 %G eng %U http://projects.iq.harvard.edu/huri/files/vv_n1march1981.pdf %N 1