@article{AL_1990_29_3_a7,
     author = {D. Evans and A. Pillay and B. Poizat},
     title = {A group in a group},
     journal = {Algebra i logika},
     pages = {368--378},
     publisher = {mathdoc},
     volume = {29},
     number = {3},
     year = {1990},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/AL_1990_29_3_a7/}
}