Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q50810950
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/my3rhjpzajdy3crqkfprzdgon4
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q50810950
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/my3rhjpzajdy3crqkfprzdgon4
Google: www.google.com/ ... https://www.google.com/search?q=ISSN+%222222-4203%22
Bing: www.bing.com/se ... https://www.bing.com/search?q=ISSN+%222222-4203%22
Yahoo: search.yahoo.co ... https://search.yahoo.com/search?p=ISSN%20%222222-4203%22
CROSSREF: search.crossref ... https://search.crossref.org/?q=+2222-4203