title: Extract abstract / full text from scientific literature given DOI or Title
body: <p>There are quite a lot of tools to extract text from PDF files[1-4]. However the problem with most scientific papers is the hardship to get access PDF directly mostly due to the need to pay for them. There are tools that provide easy access to papers' information such as metadata or bibtex , beyond the just the bibtex information[5-6]. What I want is like taking a step forward and go beyond just the bibtex/metadata:</p>
  
  <p>Assuming that there is no direct access to the publications' PDF files, is there any way to obtain at least abstract of a scientific paper given the paper's DOI or title? Through my search I found that there has been some attempts [7] for some similar purpose. Does anyone know a website/tool that can help me obtain/extract abstract or full text of scientific papers? If there is not such tools, can you give me some suggestions for how I should go after solving this problem? </p>
  
  <p>Thank you</p>
  
  <pre><code>[1] http://stackoverflow.com/questions/1813427/extracting-information-from-pdfs-of-research-papers
  [2] https://stackoverflow.com/questions/6731735/extracting-the-actual-in-text-title-from-a-pdf
  [3] http://stackoverflow.com/questions/6731735/extracting-the-actual-in-text-title-from-a-pdf?lq=1
  [4] http://stackoverflow.com/questions/14291856/extracting-article-contents-from-pdf-magazines?rq=1
  [5] https://stackoverflow.com/questions/10507049/get-metadata-from-doi
  [6] https://github.com/venthur/gscholar
  [7] https://stackoverflow.com/questions/15768499/extract-text-from-google-scholar
  </code></pre>