CALCULATION OF CORE-EXCITED STATES IN Li G Verbockhaven and J E Hansen Department of Physics and Astronomy, University of Amsterdam, Valckenierstraat 65, NL-1018 XE Amsterdam, The Netherlands Summary: Calculations of core-excited states, principally in Li, are reported. Energy levels and autoionization widths are calculated using a variational method based on the use of $B$-spline basis sets. We compare with the available experimental and theoretical values.