1. Björkman, E.: On the conditions for the appearance of timber-yard blue stain and methods of combating it. Medd. Stat. Skogsforskningsinst.35 (1946).
2. Björkman, E.: On the development of log blue stain and storage decay in pine saw-timber during floating. Medd. Stat. Skogsforskningninst.35 (1946).
3. Björkman, E.: Storage decay and blue stain in forest stored pine, spruce, birch and aspen pulpwood. Kungl. Skogshögskolans Skrifter Nr. 29, Stockholm 1958.
4. Colley, R. H., undRumbold, C. T.: Relation between moisture content of the wood and the blue stain in Loblolly Pine. J. Agri. Res.41 (1930), 389–399.
5. Hilf, H. H.: Holzerhaltung bei sommergefällten Kiefern. Forstarch.18 (1942), 185–194.