00411nam a2200157Ia 4500008004100000020001500041082001600056100001900072245003700091260003400128300000800162650002300170650001800193653001900211653002300230170901s1979    xx            000 0 und d  a038709329X  a581.1bB65M  aBohm, Wolfgang 0aMethods of Studying Root Systems  aBerlinbSpringer-Verlagc1979  a188  aBotanical sciences  aPure Sciences  aRoots (botany)  aStudy and teaching