https://www.sciencedirect.com/science/article/pii/S0376635799000698 (Publisher version)
Kirner, A., Weiler, E., & Apfelbach, R. (1999). The use of lectins as a non-invasive approach to the study of odour detection in mammals. Behavioural Processes, 48(1-2), 89-99. doi:10.1016/S0376-6357(99)00069-8.