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Wauters, L.A. & Dhondt, A.A. (1992). "Spacing behaviour of red squirrels, Sciurus vulgaris: variation between habitats and the sexes". Animal Behaviour. 43 (2): 297–311. doi:10.1016/S0003-3472(05)80225-8. S2CID54357713.
Macdonald, I. M. V. (1997). "Field experiments on duration and precision of grey and red squirrel spatial memory". Animal Behaviour. 54 (4): 879–91. doi:10.1006/anbe.1996.0528. PMID9344441. S2CID38573283.
Macdonald, I. M. V. (1997). "Field experiments on duration and precision of grey and red squirrel spatial memory". Animal Behaviour. 54 (4): 879–91. doi:10.1006/anbe.1996.0528. PMID9344441. S2CID38573283.
Wauters, L.A. & Dhondt, A.A. (1992). "Spacing behaviour of red squirrels, Sciurus vulgaris: variation between habitats and the sexes". Animal Behaviour. 43 (2): 297–311. doi:10.1016/S0003-3472(05)80225-8. S2CID54357713.