http://indjst.org/lib/pkp/js/classes/Helper.js
http://firstmonday.org/ojs/lib/pkp/js/classes/Helper.js
http://ijoc.org/lib/pkp/js/classes/Helper.js
http://ijird.com/lib/pkp/js/classes/Helper.js
http://jacmp.org/lib/pkp/js/classes/Helper.js
http://samj.org.za/lib/pkp/js/classes/Helper.js
https://voices.no/lib/pkp/js/classes/Helper.js
http://hsd-fmsb.org/lib/pkp/js/classes/Helper.js
http://www.rbne.com.br/lib/pkp/js/classes/Helper.js
http://indianjournalofmarketing.com/lib/pkp/js/classes/Helper.js