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Table 3 Archives and databases to be searched for grey literature

From: Are greenhouse gas fluxes lower from ley or perennial fallow than from arable organic soils? A systematic review protocol

Archive / database

URL

Language

BASE

https://www.base-search.net/

English, German, French, Danish

SwePub

https://swepub.kb.se/

English, Swedish

Finna

https://www.finna.fi/?lng=en-gb

English, Finnish

ProQuest Theses and Dissertations

https://www.proquest.com/

English