On mean value theorems for small geodesic spheres in Riemannian manifolds Masanori Kôzaki — 1992 Czechoslovak Mathematical Journal
On the Independence of Exit Time and Exit Position from Small Geodesic Balls for Brownian Motions on Riemannian Manifolds. Masanori Kôzaki; Yukio Ogura — 1988 Mathematische Zeitschrift
On normal forms of Laplacian and its iterations in harmonic spaces Masanori Kôzaki; Hidekichi Sumi — 1989 Commentationes Mathematicae Universitatis Carolinae