Technical guidelines for genetic conservation of Norway spruce (Picea abies (L.) Karst.)
Koski Veikko
Skroppa Tore
Paule Ladislav TUZLFF - Katedra fytológie
Wolf Heino
Turok Jozef
Rome : International Plant Genetic Resources Institute , 1997. - 46 p.
xkni - KNIHY
https://www.bioversityinternational.org/fileadmin/_migrated/uploads/tx_news/Technical_guidelines_for_genetic_conservation_of_Norway_spruce__Picea_abies__L.__Karst.__278.pdf