A robust extension of omega-regular languages (Logic and Algorithms, Edinburgh 08)
Piecewise testable tree languages (LICS 08)
Tree languages definable with one quantifier alternation (ICALP 08)
XPath evaluation in linear time (PODS 08)
Common fragment of ACTL and LTL (FoSSaCS 08)
Unary two-way temporal logic for trees (LICS 07)
Expressive power of tree logics (LCC 07)