URL: www.hindawi.com ... http://www.hindawi.com/journals/ijpme/
SUDOC: www.sudoc.fr/14 ... http://www.sudoc.fr/146123115
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q50521826
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/wirike4pufdijjyaidid7s2jh4
URL: www.hindawi.com ... http://www.hindawi.com/journals/ijpme/
SUDOC: www.sudoc.fr/14 ... http://www.sudoc.fr/146123115
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q50521826
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/wirike4pufdijjyaidid7s2jh4
Google: www.google.com/ ... https://www.google.com/search?q=ISSN+%221687-6687%22
Bing: www.bing.com/se ... https://www.bing.com/search?q=ISSN+%221687-6687%22
Yahoo: search.yahoo.co ... https://search.yahoo.com/search?p=ISSN%20%221687-6687%22
CROSSREF: search.crossref ... https://search.crossref.org/?q=+1687-6687