%0 Journal Article %J Palaeobulgarica / Старобългаристика %D 1987 %T Patriarchs Euthymius of Tarnovo and Philotheus of Consatantinople and Liturgical Reforms in Fourteenth Century Bulgaria %A Thomson, Francis J. %B Palaeobulgarica / Старобългаристика %V 11 %P 116–119 %G eng %N 4