Truax, J. & Vonk, J. & Meri, E. & Troxell-Smith, S.M. (2023)
Aquarium Visitors Catch Some Rays: Rays Are More Active in the Presence of More Visitors. Animals, 13(22), Article 3526
DOI: 10.3390/ani13223526

Vonk, J. & Arie, C. & Marjolijn, J.A. & Stapel, J. (2008)
Redefining the trophic importance of seagrasses for fauna in tropical Indo-Pacific meadows. Estuarine, Coastal and Shelf Science, 79(4), 653–660
DOI: 10.1016/j.ecss.2008.06.002