Gary Schaan: Managing Towards the Gold Standard – Ecological Values of Second Growth Small Woodlands on Vancouver Island. In: T. W. Droscher, D.A. Fraser (Hrsg.): Proceedings of the 2003 Georgia Basin/Puget Sound Research Conference. 2004, OCLC56828988 (psat.wa.gov (Memento vom 1. April 2004 im Internet Archive)).
Gary Schaan: Managing Towards the Gold Standard – Ecological Values of Second Growth Small Woodlands on Vancouver Island. In: T. W. Droscher, D.A. Fraser (Hrsg.): Proceedings of the 2003 Georgia Basin/Puget Sound Research Conference. 2004, OCLC56828988 (psat.wa.gov (Memento vom 1. April 2004 im Internet Archive)).