Aubert, B. Study ofe+e- to Lambda anti-Lambda, Lambda anti-Sigma^0,Sigma^0 anti-Sigma^0 using Initial State Radiation with BaBar, article, September 14, 2007; (https://digital.library.unt.edu/ark:/67531/metadc882737/m1/1/: accessed August 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .