AUTHOR=Brzoska Laura, Fischer Mareike, Lentz Hartmut H. K. TITLE=Corrigendum: Hierarchical Structures in Livestock Trade Networks—A Stochastic Block Model of the German Cattle Trade Network JOURNAL=Frontiers in Veterinary Science VOLUME=7 YEAR=2020 URL=https://www.frontiersin.org/articles/10.3389/fvets.2020.00456 DOI=10.3389/fvets.2020.00456 ISSN=2297-1769