@ARTICLE{Georgieva+Hustadt+Schmidt@JSC2003,
 AUTHOR   = {Georgieva, L. and Hustadt, U. and Schmidt, R. A.},
 YEAR     = {2003},
 TITLE    = {Hyperresolution for Guarded Formulae},
 JOURNAL  = {Journal of Symbolic Computation},
 VOLUME   = {36},
 NUMBER   = {1-2},
 PAGES    = {163-192},
 URL      = {http://dx.doi.org/10.1016/S0747-7171(03)00034-8},
 ABSTRACT = {This paper investigates the use of hyperresolution as a decision
 procedure and model builder for guarded formulae.
 In general hyperresolution is not a decision procedure for the entire
 guarded fragment.
 However we show that there are natural fragments of the guarded
 fragment which can be decided by hyperresolution.
 In particular, we prove decidability of hyperresolution with or without
 splitting for the fragment GF1- and point out several ways of
 extending this fragment without loosing decidability.
 As hyperresolution is closely related to various tableaux methods
 the present work is also relevant for tableaux methods.
 We compare our approach to hypertableaux, and mention the relationship to other 
 clausal classes which are decidable by hyperresolution.}
}