TY JOUR TI CALCULATING SIMPLE MULTI-COMPONENT RECTIFICATION BY THE FENSKE-UNDERWOOD-GILLILAND METHOD KW pseudocomponents KW Fensky's method KW Underwood's method KW Gilliland's method JO Scientific Papers Collection of the Angarsk State Technical University AU Semenov, I.A. AU Shefer, P.P. PY 2024 IS 2024 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»