| Nummer | Titel | Auteurs | Jaar | |
|---|---|---|---|---|
![]() | 10733.1968 | De botanische betekenis van de Waddeneilanden / door V. Westhoff. - 1968 In: Waddenbulletin : orgaan van de Landelijke Vereniging tot Behoud van de Waddenzee. - 3 (1968), nr: 3, p. 6-8 : foto | V. Westhoff | 1968 |
![]() | 6743.9 | Flora and vegetation of the Wadden Sea Islands and coastal areas : final report of the section "Flora and vegetation of the Islands' of the Wadden Sea Working Group / ed. by K.S. Dijkema, W.J. Wolff. - 1983 | K.S. Dijkema; Wadden Sea Working Group. Section 'Flora and Vegetation of the islands'; W.J. Wolff | 1983 |