"Holzforschung - International Journal of the Biology, Chemistry, Physics and Technology of Wood", 25.4 (1971): 97-136. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/hfsg.1971.25.issue-4/issue-files/hfsg.1971.25.issue-4.xml

Holzforschung - International Journal of the Biology, Chemistry, Physics and Technology of Wood (1971), 25(4), pp. 97-136. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/hfsg.1971.25.issue-4/issue-files/hfsg.1971.25.issue-4.xml

Holzforschung - International Journal of the Biology, Chemistry, Physics and Technology of Wood. 1971. 25(4): 97-136. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/hfsg.1971.25.issue-4/issue-files/hfsg.1971.25.issue-4.xml