Cassam, Quassim (1987) Transcendental arguments, transcendental synthesis and transcendental idealism. The Philosophical Quarterly, Vol.37 (No.149). pp. 355-378. doi:10.2307/2219565 ISSN 0031-8094.

Popper, Karl Raimund and Miller, D. W. (1987) Why probabilistic support is not inductive. Philosophical Transactions of The Royal Society of London Series A : Mathematical Physical and Engineering Sciences, 321 (1562). pp. 569-591. doi:10.1098/rsta.1987.0033 ISSN 0080-4614.