@inbook{ BULLEJOS_BROWN-_PORTER-:11-26,

author = { MANUEL BULLEJOS LORENZO and RONNIE BROWN- and TIMOTY PORTER- } ,

title = { CROSSED COMPLEXES, FREE CROSSED RESOLUTIONS AND GRAPH PRODUCTS OF GROUPS },

booktitle = { GROUP THEORY AND LOW-DIMENSIONAL TOPOLGY. },

isbn = { 3-88538-227-X },

publisher = { HELDERMANN VERLAG },

pages = { 11 - 26 },

year = { 2003 },

}