Erratum to: Linguistic neighbourhoods: explaining cultural borders on Wikipedia through multilingual co-editing activityAnna Samoilenko, Fariba Karimi, Daniel Edler, Jérôme Kunegis and Markus StrohmaierEPJ Data Sci., 5 1 (2016) 15DOI: https://doi.org/10.1140/epjds/s13688-016-0076-2