Modallogik
Naming and necessity
Saul A. Kripke
Modal logic for open minds
J. F. A. K. van Benthem
The metaphysics of modality
Graeme Forbes
Modalities
Ruth Barcan Marcus
The worlds of possibility
Charles S. Chihara
Reasoning about change
Yoav Shoham
Logical Modalities from Aristotle to Carnap
Max Cresswell
Bedeutung und Notwendigkeit
Rudolf Carnap
Past, present and future
A. N. Prior
New introduction to modal logic
George Edward Hughes
