Revisio Critica Plantarum Vascularium in Regione Arctica Unionis Rerum Publicarum Sovieticarum Socialisticarum Sponte Crescentium. Fasc. 5: Salicaceae-Portulacaceae. 1966. 68 distrib.maps. some tabs. 206 p. Lex8vo. Paper bd. - In Russian, with Latin nomencla- ture and species index.