Dear colleagues, dear IUFRO members! At the symposium 'Advances and Challenges in Managerial Economics and Accounting' which was organized by IUFRO group 4.05.00 and took place at BOKU, Vienna, Austria in May 9 - 11, 2016 it was decided that the 2017 annual international conference of IUFRO research group 4.05.00 will be organized within the IUFRO 125th Anniversary Congress, Freiburg, Germany, September 19 -22, 2017 ( <http://iufro2017.com/call-for-session/> http://iufro2017.com) Your and your colleagues' contributions to the group's activities in terms of session proposals for the IUFRO 125th Anniversary Congress are therefore highly appreciated! The call for session proposals with the deadline of June 15, 2016 can be found at <http://iufro2017.com/call-for-session/> http://iufro2017.com/call-for-session/ We would be pleased about your and your colleagues' cooperation within the foreseen sessions (see attachment) or about new proposals for sessions. For any further information please contact Lidija Zadnik, or Donald Hodges or Walter Sekot. See you in Freiburg in Sept. 2017! Gerda Wolfrum on behalf of Lidija Zadnik (IUFRO 4.05.00 coordinator and member of IUFRO2017 CSC) Walter Sekot (IUFRO 4.05.01 coordinator) Donald Hodges (IUFRO 4.05.02 coordinator) Vitor <http://www.iufro.org/who-is-who/officeholder/hoeflich/> Afonso Hoeflich, (IUFRO 4.05.03 coordinator)