Grubb, Peter J.; Lee, William G.; Kollmann, Johannes; Wilson, J. Bastow (1996). "Interaction of Irradiance and Soil Nutrient Supply on Growth of Seedlings of Ten European Tall-Shrub Species and Fagus Sylvatica". Journal of Ecology. 84 (6): 827–840. doi:10.2307/2960555. JSTOR2960555.
Way, M. J.; Cammell, M. E. (1982). "The Distribution and Abundance of the Spindle Tree, Euonymus europaeus, in Southern England with Particular Reference to Forecasting Infestations of the Black Bean Aphid, Aphis fabae". Journal of Applied Ecology. 19 (3): 929–940. doi:10.2307/2403294. JSTOR2403294.
Grubb, Peter J.; Lee, William G.; Kollmann, Johannes; Wilson, J. Bastow (1996). "Interaction of Irradiance and Soil Nutrient Supply on Growth of Seedlings of Ten European Tall-Shrub Species and Fagus Sylvatica". Journal of Ecology. 84 (6): 827–840. doi:10.2307/2960555. JSTOR2960555.
Way, M. J.; Cammell, M. E. (1982). "The Distribution and Abundance of the Spindle Tree, Euonymus europaeus, in Southern England with Particular Reference to Forecasting Infestations of the Black Bean Aphid, Aphis fabae". Journal of Applied Ecology. 19 (3): 929–940. doi:10.2307/2403294. JSTOR2403294.