Wallroth´s collection of vascular plants in the herbarium of the National Museum, Prague Blanka Skočdopolová , Jindřich Chrtek sen. | pages 5–37 PDF
Wallroth´s collection of vascular plants in the herbarium of the National Museum, Prague Blanka Skočdopolová , Jindřich Chrtek sen.2008 | volume 64 | issue 1 | pages 5–37 PDF
Waldstein’ s collection in herbarium of the National museum in Prague. Jindřich Chrtek sen., Blanka Skočdopolová 1982 | volume 38 | issue 4 | pages 201–238 PDF