Carlo Blundo, Alfredo De Santis, and Ugo Vaccaro. Randomness in distribution protocols. Uriel Feige and Joe Kilian. Zero knowledge and the chromatic number. Uriel Feige and Joe Kilian.
Impossibility results for recycling random bits in two-prover proof systems.
Oded Goldreich and Avi Wigderson. Noam Nisan and David Zuckerman. Randomness is linear in space. Michael Saks, Aravind Srinivasan, and Shiyu Zhou. Explicit OR-dispersers with polylogarithmic degree.