Pengarang: Mladen Pavičić and Norman D. Megill
| No. Panggil: Journal of Logic and Computation December 2008, 18 (6), p. 959-982
| Penerbitan: Oxford University Press
Pengarang: Carlo Meghini and Nicolas Spyratos
| No. Panggil: Journal of Logic and Computation December 2008, 18 (6), p. 831-847
| Penerbitan: Oxford University Press
Pengarang: Yijia Chen and Jörg Flum
| No. Panggil: Journal of Logic and Computation February 2009, 19 (1), p. 89-122
| Penerbitan: Oxford University Press
Pengarang: Ming-Ying Chung and Gianfranco Ciardo
| No. Panggil: Journal of Logic and Computation February 2011, 21 (3), p. 63-83
| Penerbitan: Oxford University Press
Pengarang: James Brotherston and Alex Simpson
| No. Panggil: Journal of Logic and Computation December 2011, 21 (6), p. 1177-1216
| Penerbitan: Oxford University Press