@TECHREPORT{Preda2010,
  AUTHOR = {Preda, Nicoletta and Suchanek, Fabian and Yuan, Wenjun and Weikum, Gerhard},
  TITLE = {Query evaluation with asymmetric web
services},
  TYPE = {Research Report},
  INSTITUTION = {Max-Planck-Institut f{\"u}r Informatik},
  ADDRESS = {Stuhlsatzenhausweg 85, 66123 Saarbr{\"u}cken, Germany},
  NUMBER = {MPI-I-2010-5-004},
  MONTH = {March},
  YEAR = {2011},
  ISSN = {0946-011X},
}