Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 24 references without a DOI — listed, not checked
no DOI — not checkedBraun-Blanquet J. 1932. Plant Sociology: The Study of Plant Communities. McGraw-Hill, New York.
no DOI — not checkedCronk Q.C.B. and Fuller J.L. 1995. Plant Invaders. Chapman & Hall, London.
no DOI — not checkedCwiklinski E. 1978. Die Einwanderung der Synanthropenart Impatiens parviflora DC. in die Naturlichen Pflanzengesellschaften. Acta Botanica Slovenica Series A 3: 17–33.
no DOI — not checkedDallmeier F. and Comiskey J.A. 1998. Forest biodiversity assessment, monitoring and evaluation for adaptive management. In: Dallmeier F. and Comiskey J.A. (eds), Forest Biodiversity Research, Monitoring and Modelling. UNESCO, Paris, pp. 3–15.
no DOI — not checkedDickson J.H. 1998. Plant introductions in Scotland. In: Lambert R.A. (ed.), Species History in Scotland. Introductions and Extinctions Since the Ice Age. Scottish Cultural Press, Edinburgh, Scotland, UK, pp. 38–44.
no DOI — not checkedDoolittle W.T. 1969. Research in urban forestry. Journal of Forestry 67: 650–656.
no DOI — not checkedEllenberg H. 1988.Vegetation Ecology of Central Europe. Cambridge University Press, Cambridge, UK.
no DOI — not checkedEllenberg H., Weber H.E., Dull R., Wirth V., Werner W. and Paulissen D. 1991. Zeigerwerte von Pflanzen in Mitteleuropa. Scripta Geobotanica 18: 1–248.
no DOI — not checkedGodefroid S. 1995. Aperçu floristique de la foret de Soignes dans sa partie bruxelloise. Dumortiera 61–62: 7–21.
no DOI — not checkedGodefroid S. 1996a. Mise en evidence de la richesse floristique d'une grande ville: le cas de Bruxelles-Capitale. Dumortiera 63: 19–30.
no DOI — not checkedGodefroid S. 1996b. A propos de l'extension spectaculaire de Fallopia japonica, F. sachalinensis, Buddleja davidii et Senecio inaequidens en Région bruxelloise. Dumortiera 63: 9–16.
no DOI — not checkedGaodefroid S. 1998. Contribution a la connaissance de la distribution d'Heracleum mantegazzianum a Bruxelles. Dumortiera 72: 1–7.
no DOI — not checkedHonnay O., Degroote B. and Hermy M. 1998. Ancient-forest plant species in Western Belgium: a species list and possible ecological mechanisms. Belgian Journal of Botany 130: 139–154.
no DOI — not checkedLambinon J., De Langhe J.E., Delvosalle L. and Duvigneaud J. 1992. Nouvelle Flore de la Belgique, du Grand-Duché de Luxembourg, du Nord de la France et des Régions voisines (Peridophytes et Spermatophytes). Jardin Botanique national de Belgique, Meise, Belgium.
no DOI — not checkedMacdonald I.A.W. 1994. Global change and alien invasions: implications for biodiversity and protected area management. In: Solbrig O.T., Van Emden H.M. and Van Oordt P.G.W. (eds), Biodiversity and Global Change. CAB International /IUBS, Paris, pp. 199–209.
no DOI — not checkedMacdonald I.A.W., Loope L.L., Usher M.B. and Hamann O. 1989. Wildlife conservation and the invasion of nature reserves by introduced species: a global perspective. In: Drake J.A., Mooney H.A., di Castri F., Groves R.H., Kruger F.J., Rejmanek M. et al. (eds), Biological Invasions: A Global Perspective. Wiley, New York, pp. 215–255.
no DOI — not checkedMark S. and Lawesson J.E. 2000. Plants as indicators of the conservation value of Danish beech forests. Proceedings IAVS Symposium, Uppsala, Sweden, 26 July–1 August 1998. Uppsala, Sweden, pp. 158–161.
no DOI — not checkedNoirfalise A. 1984. Forêts et stations forestiéres en Belgique. Les Presses Agronomiques de Gembloux, Gembloux, Belgium.
no DOI — not checkedSpellerberg I.F. 1994. Monitoring Ecological Change. Cambridge University Press, Cambridge, UK.
no DOI — not checkedStieperaere H. and Fransen K. 1982. Standaardlijst van de Belgische vaatplanten, met aanduiding van hun zeldzaamheid en socio-oecologische groep. Dumortiera 22: 1–41.
no DOI — not checkedTanghe M. and Froment A. 1968. Variabilite du tapis herbace de la chenaie-coudraie en fonction des caractéristiques édaphiques superficielles. Bulletin de la Societe Royale de Botanique de Belgique 101: 245–256.
no DOI — not checkedTrepl L. 1984. Ñber Impatiens parviflora DC. als Agriophyt in Mitteleuropa. Dissertationes Botanicae 73. J. Cramer, Vaduz.
no DOI — not checkedUsher M.B. 1989. Ecological effects of controlling invasive terrestrial vertebrates. In: Drake J.A., Mooney H.A., di Castri F., Groves R.H., Kruger F.J., Rejmanek M. et al. (eds), Biological Invasions: A Global Perspective. Wiley, New York, pp. 463–489.
no DOI — not checkedvan Rompaey E. and Delvosalle L. 1979. Atlas de la flore belge et luxembourgeoise, Pteridophytes et Spermatophytes. Jardin Botanique National de Belgique, Meise, Belgium.
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