#+BEGIN_SRC emacs-lisp :tangle doi-utils.el
(defun isbn-to-bibtex-lead (isbn)
"Search lead.to for ISBN bibtex entry. You have to copy the entry if it is on the page to your bibtex file."
- (interactive "ISBN: ")
+ (interactive "sISBN: ")
(browse-url
(format "http://lead.to/amazon/en/?key=%s+&si=all&op=bt&bn=&so=sa&ht=us" isbn)))
#+END_SRC