TY - BOOK AU - Hilgevoord,Jan TI - Dispersion relations and causal description: an introduction, to dispersion relations in field theory U1 - 530.12 23 PY - 1960/// [Reprinted 1962.] CY - Amsterdam PB - North-Holland Pub. Co. KW - Quantum field theory N1 - Thesis--University of Amsterdam; Bibliography: p. [139]-140 ER -