@book
{TN_libero_mab2,
author = {
Heikinheimo, Olli
},
title = {
The Forest Research Institute of Finland and its activities from 1918 to 1938
},
publisher = {},
year = {1939},
booktitle = {Metsätieteellisen Tutkimuslaitoksen julkaisuja ; 28,1},
address = {
Helsinki
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}