00571nam a2200157Ia 4500003000900000008004100009020001800050040001600068080001900084245015100103260003300254300001500287650006800302700002300370700002000393IN-BaIIA211028s9999 xx 000 0 eng d a0-12-333341-5 cIIA Library a537.533bHAW-1 0aPrinciples of electron opticsbvol. 1, basic geometrical opticscedited by P. W. Hawkes and E. Kasper  aLondonbAcademic Pressc1996 axii, 623p. aElectrom optics, Geometric optics, electron optical Instruments aHawkes, P. W., ed. aKasper, E., ed.