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Conservatoire botanique national des Pyrénées et de Midi-Pyrénées

Ulber, L., Steinmann, H.H., Gerowitt, B., 2009 . Rewarding farmers for delivering arable plant diversity - a case-study approach. In: Weeds and biodiversity : 3rd workshop of the EWRS working group, 12-13 march 2009 Lleida (Spain). Universitat de Lleida, [S.l.]: 11.