Lens, F., Eeckhout, S., Zwartjes, R., Smets, E., & Janssens, S. B. (2012). The multiple fuzzy origins of woodiness within Balsaminaceae using an integrated approach. Where do we draw the line? Oxford University Press.

Lens, Frederic, Sharon Eeckhout, Rosa Zwartjes, Erik Smets, and Steven B. Janssens. The Multiple Fuzzy Origins of Woodiness Within Balsaminaceae Using an Integrated Approach. Where Do We Draw the Line? Oxford University Press, 2012.

Lens, Frederic, et al. The Multiple Fuzzy Origins of Woodiness Within Balsaminaceae Using an Integrated Approach. Where Do We Draw the Line? Oxford University Press, 2012.