On 12-16.6.2017 a XII Workshop on Particle Correlations and Femtoscopy was held in Amsterdam, Netherlands. Our student, Ing. Jindřich Lidrych (FNSPE CTU in Prague), had his presentation on Kaon femtoscopy in 200 GeV collisions at the STAR experiment. RNDr. Petr Chaloupka, Ph.D. (FNSPE CTU in Prague) and Bc. Lukáš Holub (FNSPE CTU in Prague) also attended this workshop.