TY - BOOK AU - CHRUSCIEL(Piotr T) Ed. TI - "Mathematics of gravitation. Part I: Lorentzian geometry and Einstein equations. Proceedings of the Mathematical aspects of theories of gravitation workshop. held in the Banach Center of the Institute of Mathematics of the Polish Academy of Sciences, Warsaw, Feb 29 - 30 March 1996" SN - 0137-6934 CY - Poland ER -