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Novák,B., und V. Rypáček (Herausgeber): Studies about Humus. Transactions of the International Symposium „Humus et Planta IV”︁. Prag,Sept. 1967. Publ. by Central Res. Inst. of Plant Production of the Agric. and Food Res. Centre,Prag 6, Ruzynê. 316 Seiten, 198 Tabellen u. Abbildungen,DIN A 4 |
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| Authors: | H. Hippe |
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