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Boolean: (bicycle AND helmet) OR (head AND protection) (always group AND in parenthesis)
Title: title:(climate change)
Author: author:("bohr niels" OR "bohr n") (avoid only full first name)
Phrase: "water pump control" (does not work with wildcards)
Wildcards: wom?n pharm*

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Journal article

A simple method for the quantitative recovery of nitrate‐N during Kjeldahl analysis of dry soil and plant samples

By du Preez, D.R.1; Bate, G.C.1

From

a Department of Botany , University of Port Elizabeth , P O Box 1600, Port Elizabeth , 6000 , Republic of South Africa1

Language: English
Year: 1989
Pages: 345-357
ISSN: 15322416 and 00103624
Types: Journal article
DOI: 10.1080/00103628909368087

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