Häkkinen, S., H. Kokko, S. Kärenlampi, and S. Paasisalo. “Sugars and Organic Acids in Clones and Cultivars of Arctic Bramble and Hybrid. Sensory Evaluation of Juices and Jellies”. Agricultural and Food Science, vol. 4, no. 4, Dec. 1995, pp. 385-9, doi:10.23986/afsci.72616.