1. Anonymous (1987):Carte nationale de la Suisse 1:25000. Office fédéral de topographie, Wabern.
2. Bayer R.J., Purdy B.G. &Lebedyk D.G. (1991): Niche differentiation among 8 sexual species ofAntennaria Gaertner (Asteraceae, Inulae) andA. rosea their allopolyploid derivative.Evol. Trends Pl. 5: 90–123.
3. Bierzychudek P. (1987): Patterns in plant parthenogenesis. In:Stearns S.C. (ed.),The evolution of sex and its consequences, Birkhäuser Verlag, Basel, pp. 197–216.
4. Brochmann C. &Elven R. (1992): Ecological and genetic consequence of polyploidy in arcticDraba (Brassicaceae).Evol. Trends Pl. 6: 11–124.
5. Brown S.C., Bergounioux C., Tallet S. &Marie D. (1991): Flow cytometry of nuclei for ploidy and cell cycle analysis. In:Negrutiu I. &Gharti-Chhetri G. (eds.),A laboratory guide for cellular and molecular plant biology, Birkhäuser Verlag, Basel, pp. 326–345.