Klinger, Y. P., Hansen, W., Otte, A., Ludewig, K., (2019). BfN - Skripten (Bundesamt für Naturschutz)(No.527), 167-172. Bundesamt für Naturschutz (German Federal Agency for Nature Conservation), Bonn, Germany. German language
James, T. K., Trolove, M. R., Dowsett, C. A., (2019). New Zealand Plant Protection 72, 153-157. New Zealand Plant Protection Society, Hastings, New Zealand. English language
DeValerio, J. T., Charudattan, R., Mullahey, J. J., Roberts, P. D., (2011). Pest Technology 5(Special 1), 102-107. Global Science Books Ltd, Kagawa ken, Japan. English language
Ward, J. S., Worthley, T. E., Williams, S. C., (2009). Forest Ecology and Management 257(2), 561-566. Elsevier, Amsterdam, Netherlands. English language