@book{il:pr:lmd,
address = "Cambridge",
author = "Imre Lakatos",
isbn = "0 521 21078 X (hard covers)
0 521 29038 4 (paperback)",
note = "Edited by John Worrall and Elie Zahar",
publisher = "Cambridge University Press",
title = "Proofs and Refutations:
The Logic of Mathematical Discovery",
year = 1976}