High-Resolution Radio Observations of Five Optically Selected Type 2 Quasars. - Máté Krezinger; Sándor Frey; Zsolt Paragi; Roger Deane (Symmetry, 2020)

Very Long Baseline Interferometry Observations of the Proposed Radio Counterpart of an EGRET Source. - Patrik Milán Veres; Krisztina Éva Gabányi; Sándor Frey (Symmetry, 2020)

Special Issue on Astronomy and Symmetry. - Sándor Frey (Symmetry, 2022)

The Quasar CTD 135 Is Not a Compact Symmetric Object. - Sándor Frey; Krisztina Éva Gabányi; Tao An (Symmetry, 2022)