There are journal articles:
Inventory of the behaviour of New Zealand White rabbits in laboratory cages
Debbie Gunn, David B. Morton
Applied Animal Behaviour Science 45 ( 1995) 277-292
That covers observered behaviour including stereotypies, fur chewing, bar chewing etc. broken down into time budgets
A behavioral comparison of New Zealand White rabbits (Oryctolagus cuniculus) housed individually or in pairs in conventional laboratory cages
Ling-ru Chu, Joseph P. Garner, Joy A. Mench
Applied Animal Behaviour Science 85 (2004) 121–139
Also looks at the same types of behaviours and how they are effected by keeping rabbits in pairs
The effect of environmental enrichment on the behaviour of caged rabbit oryctolagus cuniculus/
L.T. Hansen), H. Berthelsen
Applied Animal Behaviour Science 682000.163–178
That looks at the effects on behaviour when a shelter is added to the cage
Behavioural effects of environmental enrichment for individually caged rabbits
Lena Lidfors
Applied Animal Behaviour Science 52 (1997) 157- 169
Adding hay in a water bottle, grass-cubes, two gnawing sticks or a box and the effects on behaviour
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Tam