TY - BOOK AU - Hawkes,P.W. AU - Kasper,E.(Erwin),1933- TI - Principles of electron optics SN - 0123333512 PY - 1989/// CY - London PB - Academic Press KW - Electron optics N1 - Includes bibliographical references; Contents: vol.1. Basic geometrical optics. vol.2. Applied geometrical optics ER -