Link

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T82-4S7HSF3-1&_user=10&_coverDate=12%2F31%2F2008&_alid=1751908895&_rdoc=9&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5074&_sort=r&_st=13&_docanchor=&view=c&_ct=311801&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e50fe2adf106ca5e72dd522672c6c696&searchtype=a

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B82XN-5179G5K-P&_user=10&_coverDate=09%2F30%2F2010&_alid=1751908895&_rdoc=5&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=33035&_sort=r&_st=13&_docanchor=&view=c&_ct=311801&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=f67426e62f6021ae147e184579e7ca57&searchtype=a

These abstracts do not have many structural differences both begin with the objective of the article and report their results in a similar way
The main difference is that in one the results are explained as they relate to the contrary in the other occurs at the end

Answers

Does article include references?

Yes, It does include references 


Does the abstract have structure? – what kind?

Yes, the abstract does have structure. First say the goal of the paper and after tell the experiment and explain their results


Use of diagrams?

No, the abstracts not use diagrams

How did you find the article? (key words, links, search?)

I search on sciencedirect "muscle properties" and I select this paper

What is the reference for the article you found?

Not understand the question, www.sciencedirect.com??