@article{EXMA_1996__5_1_231825,
     author = {Holt, Derek F. and Rees, Sarah},
     title = {Free quotients of finitely presented groups.},
     journal = {Experimental mathematics},
     pages = {49--56},
     publisher = {mathdoc},
     volume = {5},
     number = {1},
     year = {1996},
     zbl = {0867.20030},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMA_1996__5_1_231825/}
}