1. Hangartner, W., Payer, B. and Meier, W. (1971) Effects of a juvenile hormone analogue on the apterous form of the bean aphid,Aphis fabae Scop.Meded. Fac. Landbwet. Gent 36: 866–873.
2. Kalsi, P.S., Vij, V.K., Singh, O.S. and Wadia, M.S. (1977) Terpenoid lactones as plant growth regulators.Phytochemistry 16: 784–786.
3. Kulkarni, G.H., Kelkar, G.R. and Bhattacharyya, S.C. (1964) Terpenoids LV: Cyclocostunolides.Tetrahedron 20: 2639–2645.
4. Lees, A.D. (1977) Action of juvenile hormone mimics on the regulation of larval-adult and alary polymorphism in aphids.Nature, Lond. 267: 46–48.
5. Paul, A., Bawedekar, A.S., Joshi, R.S., Kulkarni, G.H., Rao, A.S., Kelkar, G.R. and Bhattacharyya, S.C. (1960) Terpenoids XX: Examination of costus root oil.Perf. Ess. Oil Rec. 51: 115.