Tulekov, Y., Morzabaev А. and Makhmutov, V. 2021. The Forbush-decreases in cosmic ray fluxes and solar-proton events in July and September 2017. Recent Contributions to Physics. 2021, 2 (Jun. 2021), 10–17. DOI:https://doi.org/10.26577/RCPh.2021.v77.i2.02.