References
- BRUCE , V. , 1980 , Human performance tests with blank and normal coins . Unpublished report prepared for the Royal Mint .
- BRUCE , V. , 1986 , Final report on research into new coin options . Unpublished report prepared for the Royal Mint .
- BRUCE , V. , GILMORE , D. , MASON , L. , and MAYHEW , P. , 1983a , Factors affecting the perceived value of coins . Journal of Economic Psychology , 4 , 335 – 347 .
- BRUCE , V. , HOWARTH , C. I. , CLARK-CARTER , D. , DODDS , A. G. , and HEVES , A. D. , 1983b , All change for the pound human performance tests with different versions of the proposed UK one pound coin . Ergonomics , 26 , 215 – 227 .
- WRIGHT , P. , HULL , A. J. , and CONRAD , R. , 1969 , Performance tests with non-circular coins . Ergonomics , 12 , 1 – 10 .
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