Chiswell, Ian <br/><br/>
Universal constrution for groups acting freely on real trees (e-book) 
by Ian Chiswell and Thomas Muller 
 - Cambridge  Cambridge  2012 
 - Cambridge Tracts in Mathematics (195)   .
<br/><br/> https://doi.org/10.1017/CBO9781139176064 
<br/><br/><label>ISBN: </label>9781139176064 
<br/><br/><label>Dewey Class. No.: </label>512.2  / P122 (e-Book)(MA)