Ekologiczna Charakterystyka Populacji Sempervivum Soboliferum Sims Na Poporzu Sudeckim.(Ecological characterization of Sempervivum soboliferum Sims population in Sudetic Foothills.)1986. (Monogr.Bot.,vol.68).26 figs.6 tabs.61 p.gr8vo.Paper bd.-In Polish with English summary.