Amongst the key intellectual figures in Push debates were philosophers David J. Ivison, George Molnar, Roelof Smilde, Darcy Waters and Jim Baker, as recorded in Baker's memoir "Sydney Libertarians and the Push", published in the libertarian "Broadsheet" in 1975. Other active people included psychologists Terry McMullen, John Maze and Geoff Whiteman, educationist David Ferraro, June Wilson, Les Hiatt, Ian Bedford, Ken Maddock and Alan Olding, among many others listed in the article. An understanding of Sydney libertarian values and social theory can be obtained from their publications, a few of which are available online. There are also interesting critical articles in the Arts Society's annual journal "Arna" by Baker and Molnar whose essay on Zamyatin's "We" concluded: