Palm, H. W., Kleinertz, S. and Rückert, S. (2011) Parasite diversity as an indicator of environmental change? An example from tropical grouper (Epinephelus fuscoguttatus) mariculture in Indonesia. Parasitology, 138 (13). pp. 1793-1803. DOI https://doi.org/10.1017/S0031182011000011.

Rückert, S., Hagen, W., Yunia, A. T. and Palm, H. W. (2009) Metazoan fish parasites of Segara Anakan Lagoon, Indonesia, and their potential use as biological indicators. In: Segara Anakan, Java, Indonesia, a mangrove-fringed coastal lagoon affected by human activities. , ed. by Jennerjahn, Tim and Yuwono, E.. Regional Environmental Change, 9 (4). Springer, Cham, pp. 315-328.

Rückert, S. and Palm, H. W. (2007) Parasites as Bioindicators for a Risk Classification System around and within Indonesian Grouper Mariculture. In: Synopsis of Ecological and Soci-Economic Aspects of Tropical Coastal Ecosystems with Special Reference to Segara Anakan. , ed. by Yuwono, E., Jennerjahn, Tim C., Sastranegara, M. H. and Sukardi, P.. Research Institute Jenderal Soerdiman University, Purwokerto, pp. 44-49.