Check if Wikimedia Sweden needs an ISBN series for upcoming printed matter, books and reports:
Link: https://isbn.kb.se/
Example (governmental publisher): http://www.diva-portal.org/smash/aboutdiva.jsf?dswid=8581
ISSN is an alternativ for reports: https://www.kb.se/isbn-och-utgivning/issn-.html
Example: http://samla.raa.se/xmlui/