Urša Vilhar, Egbert Beuker, Toshie Mizunuma, Mitja Skudnik, François Lebourgeois, et al.. Chapter 9 - Tree Phenology. Marco Ferretti; Richard Fischer.
Forest Monitoring, Volume 12, 1st Edition : Methods for terrestrial investigations in Europe with an overview of North America and Asia , 12, Elsevier, pp.169-182, 2013, Developments in Environmental Science, 9780080982229.
〈10.1016/B978-0-08-098222-9.00009-1〉.
〈hal-01598823〉 
