Pengarang: Ryo Kashima and Keishi Okamoto
| No. Panggil: Journal of Logic and Computation August 2008, 18 (4), p. 497-507
| Penerbitan: Oxford University Press
Pengarang: Yi Jin and Michael Thielscher
| No. Panggil: Journal of Logic and Computation October 2008, 18 (5), p. 783-813
| Penerbitan: Oxford University Press
Pengarang: Richard Booth and Alexander Nittka
| No. Panggil: Journal of Logic and Computation October 2008, 18 (5), p. 755-782
| Penerbitan: Oxford University Press
Pengarang: Eduardo Fermé, Martín Krevneris, and Maurício Reis
| No. Panggil: Journal of Logic and Computation October 2008, 18 (5), p. 739-753
| Penerbitan: Oxford University Press
Pengarang: Jiří Adámek, Stephen L. Bloom, and Stefan Milius
| No. Panggil: Journal of Logic and Computation December 2008, 18 (6), p. 1047-1085
| Penerbitan: Oxford University Press
Pengarang: Maria Nogin and Aleksey Nogin
| No. Panggil: Journal of Logic and Computation December 2008, 18 (6), p. 1029-1045
| Penerbitan: Oxford University Press