R.R.BaraldiR.R. i inni, Volatile Organic Compound Emissions from Flowers of the Most Occurring and Economically Important Species of Fruit Trees, „Physics and Chemistry of the Earth, Part B: Hydrology, Oceans and Atmosphere”, 24 (6), 1999, s. 729–732, DOI: 10.1016/S1464-1909(99)00073-8(ang.).
Hendrik H.H.H.HagenHendrik H.H.H., Lambertus P.P.M. van derL.P.P.M.HeijdenLambertus P.P.M. van derL.P.P.M., Copolymers of ethylene and 1-heptene, patent US 7312295, 25 grudnia 2007(ang.).