SUDOC: www.sudoc.fr/11 ... http://www.sudoc.fr/112822983
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q15754308
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/nker2y54j5hb5fgftzawsmlriy
SUDOC: www.sudoc.fr/11 ... http://www.sudoc.fr/112822983
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q15754308
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/nker2y54j5hb5fgftzawsmlriy
Google: www.google.com/ ... https://www.google.com/search?q=ISSN+"1572-4999"
Bing: www.bing.com/se ... https://www.bing.com/search?q=ISSN+%221572-4999%22
Yahoo: search.yahoo.co ... https://search.yahoo.com/search?p=ISSN%20%221572-4999%22
Koninklijke Bibliotheek: opc4.kb.nl/DB=1 ... http://opc4.kb.nl/DB=1/LNG=EN/CMD?ACT=SRCHA&IKT=8&TRM=1572-4999