@article{10_2140_agt_2009_9_1423,
     author = {Groves, Daniel},
     title = {Limit groups for relatively hyperbolic groups. {I.} {The} basic tools},
     journal = {Algebraic and Geometric Topology},
     pages = {1423--1466},
     year = {2009},
     volume = {9},
     number = {3},
     doi = {10.2140/agt.2009.9.1423},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2009.9.1423/}
}