V. Lin and Y. Pinchover, Manifolds with group actions and elliptic operators, Memoirs of the American Mathematical Society 112:540 (1994), 78 pp.
V. Ya. Lin, Around the 13th Hilbert problem for algebraic functions, Israeli Math. Conference Proc. 9 (1996), 307–327.
V. Ya. Lin, M. Zaidenberg,
"Liouville and Carathéodory coverings in Riemannian and complex geometry", in book: "Winter Mathematical School", P. Kuchment & V. Lin eds., Amer. Math. Soc. Transl. (2), Volume 184, 1998, pp. 111–130.