1. Anon , 2005. Vegetation management guideline: white poplar (Populus alba L.). Illinois Nature Preserves Commission, Illinois, USA, 8 pp. [Accessed February 2018] Available online: https://www.dnr.illinois.gov/INPC/documents/vmg/VMG%20White%20poplar%20revised%202004.pdf
2. Anon , 2017. Datasheet on Mycosphaerella populorum (septoria leaf spot). CABI, Wallingford, UK. [Accessed December 2017]. Available online: https://www.cabi.org/isc/datasheet/35317
3. Bossard M, Feranec J and Otahel J, 2000. CORINE land cover technical guide ‐ Addendum 2000. Tech. Rep. 40, European Environment Agency. Available online: https://www.eea.europa.eu/ds_resolveuid/032TFUPGVR
4. Büttner G, Kosztra B, Maucha G and Pataki R, 2012. Implementation and achievements of CLC2006. Tech. rep., European Environment Agency. Available online: http://www.eea.europa.eu/ds_resolveuid/GQ4JECM8TB