00326nam a2200121Ia 4500008004100000082002000041100002300061245003300084260003500117300001400152600001900166650001900185140224s9999    xx            000 0 und d  a581.52:577.3 K3  aWijk W.R. Van, ed.  aPhysics of plant environment  aAmsterdambNorth Hollandc1963  axvi,382p.  aVan Wijk W.R.   aBotany-ecology