00359nam a2200109Ia 4500008004100000100002200041245006500063260006500128300001000193700002300203700002300226220216s9999    xx            000 0 und d  aWijesuriya Wasana 0aSeasonal variations in methodological factors at Dartonfield  bBulletin of the Rubber Research Institute of Sri Lankac2000  a29-37  aAbeywardene Vidura  aMunasinghe Chintha