Faculty of Applied Mathematics, Univ. of Twente, Enschede, the Netherlands.

Kp. Complex differential geometry and supermanifolds in strinds and fields / P. J. M. Bongaarts, R. Martini (eds.). - Berlin, 1988.

LCC online

Kp. Geometric aspects of the Einstein equations and integrable systems / ed. by R. Martini. - Berlin, 1985.