Kasparian, Azniv. 2002. “Harmonic Maps of Compact Kähler Manifolds to Exceptional Local Symmetric Spaces of Hodge Type and Holomorphic Liftings to Complex Homogeneous Fibrations”. Ann. Sofia Univ. Fac. Math. And Inf. 94 (December):97-121. https://annual.uni-sofia.bg/index.php/fmi/article/view/194.