Wurr, D. C. E., Fellows, J. R. (Jane R.), Akehurst, J. M. (Jayne M.), Hambidge, A. J. (Angela J.) and Lynn, James R. . (2001) The effect of cultural and environmental factors on potato seed tuber morphology and subsequent sprout and stem development. Journal of Agricultural Science, Vol.13 (No.1). pp. 55-63. ISSN 0021-8596