(helm-bibtex)))
(require 'helm-bibtex)
+
+(mapc (lambda (x) (add-to-list 'helm-bibtex-fallback-options x t))
+ '(("Crossref" . "http://search.crossref.org/?q=%s")
+ ("Scopus" . "http://www.scopus.com/scopus/search/submit/xadvanced.url?searchfield=TITLE-ABS-KEY(%s)")
+ ("Open Web of Science" . (lambda () (browse-url "http://apps.webofknowledge.com")))))
#+END_SRC
** A helm click menu