The most important publications with a short description.

2024 - Apr | Spectroscopic confirmation of 9 SB2 systems of two Cepheids | We confirmed spectroscopically binarity of nine double Cepheids, 2 in the LMC, 5 in the SMC and 2 in the Milky Way. This increased the number of known binary double (BIND) Cepheids from 1 to 10. Several interesting conclusions are provided. | |

2022 - Dec | Discovery of a binary Cepheid with a 59-d orbital period | A discovery of a very surprising configuration of a binary-origin Cepheid in a binary system with the orbital period 5 times shorter than any measured before. The companion is almost 2 times more massive but at a similar evolutionary stage. | |

2021 - Apr | Revealing a numerous group of SB2 Cepheids | Presenting a new method for detecting spectroscopically double-lined binary Cepheids. We present first results that prove the method is very efficient. We detected 16 new Cepheids in SB2 systems, quadrupling the number of such systems. | |

2018 - Nov | Dynamical mass of a type-II Cepheid in a system with a disk | First determination of the dynamical mass and evolutionary status of the type-II Cepheid in the eclipsing binary system OGLE-LMC-T2CEP-211. A presence of at least double-ring disk was detected. | |

2018 - Jul | Astrophysics of Cepheids in eclipsing binary systems | New and updated physical parameters for 7 Cepheids in eclipsing binary systems. Various astrophysical relations are presented, including period-mass-radius relation. New and updated p-factor values are also given. | |

2017 - Jun | Peculiar W Vir type Cepheid mass determination | First determination of the mass and the projection factor for the Cepheid OGLE-LMC-T2CEP-098 in a binary system. The star has many properties characteristic for Anomalous Cepheids. | |

2015 - Dec | Mass determination for classical FU Cepheid | Precise mass determination for a classical Cepheid in the double-lined, highly eccentric eclipsing binary system OGLE-LMC562.05.9009 | |

2015 - Jun | First-overtone Cepheid mass determination | First determination of the mass and the projection factor for the first-overtone Cepheid OGLE-LMC-CEP-2532 in a binary system. | |

2014 - May | Binary system of two Cepheids | Binary system OGLE-LMC-CEP-1718 composed of two classical FO Cepheids confirmed spectroscopically and analized. | |

2013 - Dec | First dynamical p-factor determination | First determination of the projection factor from the analysis of eclipsing binary systems for the Cepheid OGLE-LMC-CEP-0227 together with very precise physical parameters. |