TY JOUR TI Formation of a career support system for university graduates: segmentation of university graduates along professional development trajectories KW segmentation KW cluster analysis KW career support KW university graduates KW professional development KW career trajectory KW employment KW qualification loss JO Economic and Social Research AU Igrunova, O.M. AU Andreeva, A.A. AU Drozd, E.E. PY 2026 IS 13 PB National Research University of Electronic Technology