David Feldman Russell Impagliazzo Moni Naor Noam Nisan Steven Rudich Adi Shamir On Dice and Coins: Models of Computation for Random Generation. 319-340 1989 conf/icalp/1989 ICALP db/conf/icalp/icalp89.html#FeldmanINNRS89 http://dx.doi.org/10.1007/BFb0035769