1. Agsteribbe, E. & Groenhuijzen, S. (1951). Mossen van de Westzijde (Kortenhoefse Plassen). Buxbaumia, 5, pts. 1–2, 18–21. In Dutch, with summary in English. 38 mosses (8 of them Sphagnum spp.) and 6 hepatics are listed from an area of marshland. Notable plants are Mnium subglobosum (in Sphagnetum with pH 4.0) and Homalia trichomanoides (on ash at edge of Alnetum).