Changes

<ref name="Kram-1997">{{Cite journal | last1 = Kram | first1 = R. | last2 = Domingo | first2 = Kram, A. | last3 = Ferris | first3 = Domingo, DP. | last4 = Ferris | first4 = , DP. | title = Ferris, Effect of reduced gravity on the preferred walk-run transition speed. | journal = , J Exp Biol | , volume = 200 | , issue = Pt 4 | , pages = 821-6 | month = , Feb | year = 1997 | doi = | , PMID = [http://www.ncbi.nlm.nih.gov/pubmed/9076966 9076966 }}]</ref>