Baumans, V, P L P Van Loo, and T M Pham. 2010. “Standardisation of Environmental Enrichment for Laboratory Mice and Rats: Utilisation, Practicality and Variation in Experimental Results”. Scandinavian Journal of Laboratory Animal Science 37 (2):101-14. https://doi.org/10.23675/sjlas.v37i2.209.