24th 14th International Conference on Optics, Photonics & Laser,London, United Kingdom

24th 10th Global Summit on Mass Spectrometry,Porthcawl, United Kingdom

19th 5th International Conference on Recent advances in Physics (PHY 2021),Vekso, Denmark

13th International Conference and Expo on Laser Optics & Photonics,Brussels, Belgium

28th 6th International Conference on Oxide Materials for Electronic Engineering – fabrication, properties and application (ОМЕЕ-2021),Lviv, Ukraine