Primary Sources
De Rijk LM (1966) Some notes on the mediaeval tract De insolubilibus, with the edition of a tract dating from the end of the twelfth century. Vivarium 4:83-115
HeytesburyW (1979) On insoluble sentences. Chapter one ofhis rules for solving sophisms, translated with an introduction and study by Spade P. Medieval sources in translation, 21. Pontifical Institute of Medieval Studies, Toronto
Roure ML (1970) La problematique des propositions insolubles au Xllle sij'cle et au debut du XlVe, suivie de l’edition des traitjes de W. Shyreswood, W. Burleigh et Th. Bradwardine. Arch Hist Doct Litt
M-iAge 37:205-326
Spade PV (1980) Roger Swyneshed’s Insolubilia: edition and comments. Arch Hist Doct Litt M-.Age 46:177-220
Secondary Sources
Read S (2002) The liar paradox from John Buridan back to Thomas Bradwardine. Vivarium 40:189-218
Spade PV (1973) The origins of the mediaeval insolubilia-literature. Francisc Stud 33:292-309
Spade PV (1975) The mediaeval liar: a catalogue of the insolubilia-literature. Subsidia Mediaevalia, 5. Pontifical Institute of Medieval Studies, Toronto
Spade PV (1981) Insolubilia and Bradwardine’s theory of signification. Medioev: Riv Stor Filos Mediev 7:115-134
Spade PV (1983) RogerSwyneshed’s theoryofinsolubilia: a studyofsome of his preliminary semantic notions. In: History of semiotics, ed. Eschbach A, Trabant J. Foundations of semiotics, 7. John Benjamins, Amsterdam, pp 105-113
Spade PV (1987) Five early theories in the mediaeval insolubilia-litera-ture. Vivarium 25:24-46
Yrjonsuuri M (ed) (2001) Medieval formal logic., The new synthese historical library, 49. Kluwer, Dordrecht, pp 117-145
Yrjonsuuri M (2008) Treatments of the paradoxes of self-reference. In: Handbook of the History of Logic, vol. 2, Medieval and Renaissance Logic, ed. DM Gabbay & J Woods, Elsevier, Amsterdam, pp 579-608