@article{10_1017_fms_2014_9,
     author = {PHILIPP L\"UCKE and SAHARON SHELAH},
     title = {FREE {GROUPS} {AND} {AUTOMORPHISM} {GROUPS} {OF} {INFINITE} {STRUCTURES}},
     journal = {Forum of Mathematics, Sigma},
     publisher = {mathdoc},
     volume = {2},
     year = {2014},
     doi = {10.1017/fms.2014.9},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/fms.2014.9/}
}