| 1 | Auders, A.G., Spicer, D.P. 2012. Royal Horticultural Society Encyclopedia of Conifers. A comprehensive Guide to Cultivars and Species. Volume I. Royal Horticultural Society in cooperation with Kingsblue Publishing Limited, Cyprus. |
| 2 | Auders, A.G., Spicer, D.P. 2012. Royal Horticultural Society Encyclopedia of Conifers. A comprehensive Guide to Cultivars and Species. Volume II. Royal Horticultural Society in cooperation with Kingsblue Publishing Limited, Cyprus. |
| 3 | Eckenwalder, J.E. 2009. Conifers of the World. Timber Press, Portland, London |