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Ausnutzung, Festlegung und Verluste von Düngemittelstickstoff. Übersicht internationaler Ergebnisse der Grundlagenforschung während der letzten zehn Jahre
Processo para a preparacao de 6-halogeno-terc-butil-1,2,4-triazino-5-onas substituidas composicao herbicida e processos para o combate do crescimento de plantas nao pretendidas e para a preparacao de composicoes
A Comparative Study of the Development of Revolutionary Nationalist Movements in Southern Africa--Frelimo (Mozambique) and the African National Congress of South Africa
Heterocyclic dihalo-acetamides, process for their preparation and herbicidal agents containing acetanilides as herbicidal agents and these dihalo-acetamides as antagonists