URL: 2dgf.dk/publika ... http://2dgf.dk/publikationer/bulletin/
SUDOC: www.sudoc.fr/16 ... http://www.sudoc.fr/16692797X
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q96329349
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/xuxwrao33bb4jcu32ngwijuwgq
URL: 2dgf.dk/publika ... http://2dgf.dk/publikationer/bulletin/
SUDOC: www.sudoc.fr/16 ... http://www.sudoc.fr/16692797X
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q96329349
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/xuxwrao33bb4jcu32ngwijuwgq
Google: www.google.com/ ... https://www.google.com/search?q=ISSN+%222245-7070%22
Bing: www.bing.com/se ... https://www.bing.com/search?q=ISSN+%222245-7070%22
Yahoo: search.yahoo.co ... https://search.yahoo.com/search?p=ISSN%20%222245-7070%22
CROSSREF: search.crossref ... https://search.crossref.org/?q=+2245-7070