00417nam a2200145Ia 4500008004100000082002200041100001600063245002900079260002800108300001400136490003000150600003300180600001900213650003900232140224s9999    xx            000 0 und d  a578.085.23:634 N2  aBonga, J.M.  aInvitro culture of trees  aDordrechtbKluwerc1992  axvi,236p.  aForestry Sciences, Vol.38  a J.M.Bonga and P.Von Aderkas  aAderkas, P.Von  aBiotechnology,Tissue culture,Trees