https://katalog.hgb-leipzig.de/Record/ai-28-a89c6782971149a58d0eceb6ecd6f48d The CMS collaboration:
Measurement of the production cross section for single top quarks in association with W bosons in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV. 2018. — 1-39.