Acta
Acta Botanica Fennica. -- 146: Fine-interval pollen and charcoal analyses as tracers of early clearance periods in S Finland (1992). -- Helsinki : Societas pro Fauna et Flora Fennica, 1992. -- ISBN : 951-9469-40-0. -- ISSN : 0001-5369.
flóra. fauna. botanika. odborné časopisy
581.9. 591.9. 58. (051)-027.561