Introduction to the Non-Symmetric Dirichlet Forms - Z. M. Ma; M. Röckner. M. Fukushima — 1995 Metrika
On the Skew Product of Symmetric Diffusion Processes. M. Fukushima; Y. Oshima — 1989 Forum mathematicum
On (r, 2)-capacities for a class of elliptic pseudo differential operators. M. Fukushima; N. Jacob; H. Kaneko — 1992 Mathematische Annalen