BIRKS, H. John B. <br/><br/>
Mind the gap : how open were European primeval forests? / 
H. John B. Birks 
 -- [S.l.] :   Elsevier,   2005 
 - pp. 154-156 
<br/><br/> Separata de : Trends in Ecology and Evolution 20(4). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bosques - Conservación<br/>Medio ambiente
<br/><br/><label>Universal Decimal Class. No.: </label>630*4 ; 574 ; 502.3