Background reading, general introductions to DRT:
Hans Kamp ― Uwe Reyle: From Discourse to Logic. 1st edition. 1993, Kluwer (the first two chapters)
Kálmán László ― Rádai Gábor: Dinamikus szemantika (Dynamic Semantics, in Hungarian). Osiris Kiadó, Budapest. 2002. (Introductory chapters)
David Beaver ― Bart Geurts: DRT, Stanford Encyclopedia of Philosophy
An advanced introduction (for those with a strong background in logic or mathematics):
Hans Kamp ― Josef van Genabith ― Uwe Reyle: DRT. To appear in Dov Gabbay, ed. (t.a.): Handbook of Philosophical Logic, vol. 15.
Introduction to the Analysis of Tense and Aspect in DRT:
Hans Kamp ― Uwe Reyle: From Discourse to Logic. 1st edition. 1993, Kluwer, chapter 5.
David Beaver ― Bart Geurts: DRT, Stanford Encyclopedia of Philosophy, chapter on Tense.
Hans Kamp ― Josef van Genabith ― Uwe Reyle: DRT. T.a. in Dov Gabbay, ed. (t.a.): Handbook of Philosophical Logic, vol. 15. (The appropriate chapter.)
Advanced material:
Uwe Reyle ― Antje Rossdeutscher ― Hans Kamp: Ups and Downs in the Theory of Temporal Reference To appear in Linguistics and Philosophy
Some classic papers (for readers with a strong background in logic or mathematics):
Hans Kamp 1979: Events, Instants and Temporal Reference. In Baeuerle--Egli--v. Stechow eds 1979: Semantics from Different Points of View. Springer.
Hans Kamp 1980: Some Remarks on the Logic of Change. In. Rohrer ed. 1980: Time, Tense and Quantifiers. Niemeyer, Tübingen.
Hans Kamp 1981: Référence temporelle et Réprésentation du Discours. Langages.
Hans Kamp ― Christian Rohrer 1983: Tense in Texts. In Baeuerle--Schwarze--v.Stechow eds. 1983: Meaning, Use and Interpretation of Language. DeGruyter.