Special point "trains" in the M-R diagram of hybrid stars David Blaschke, Alexander Ayriyan, Mateusz Cierniak, Ana Gabriela Grunfeld, Oleksii Ivanytskyi and Mahboubeh Shahrbaf EPJ Web Conf., 274 (2022) 07011 Published online: 22 December 2022 DOI: 10.1051/epjconf/202227407011