R. Azuma, A Survey of Augmented Reality
This is the survey that is cited almost everywhere. Gives a nice overview of the ideas (but already quite old - from 1995)
R. Azuma, Y. Baillot, R. Behringer, S. Feiner, S. Julier, B. MacIntyre, Recent advances in augmented reality
A follow-up to the original survey; gives some more recent developments, but is not as important as the original one.
This is a collection of papers related to various aspects of Tracking.
Marker-based Optical Tracking (usually ARToolkit)
This paper describes an algorithm that uses a set of (ARToolkit) markers for multi-marker tracking of larger volumes.It also analyses the errors that appear during calibration of such a setup.