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by Horgan, Terence; Sabates, Marcelo; Sosa, David
by Horgan, Terence
by Henderson, David K.; Horgan, Terence
by Preyer, Gerhard; Siebelt, Frank; Armstrong, D M.; et al.
by Brewer, Bill; Carruthers, Peter; Dretske, Fred; et al.
by Horgan, Terence E.; Potrc, Matjaz