Cheskis, B., A. Moiseenkov, M. Bichevskis, G. Ozols, and K. Lebedeva. 1991. Synthesis and biological activity of Z-2,6-dimethyloctadien-5,7-ol-4, component of the frass produced by the bark beetle Ips typographus (In Russian). Agrokhimiya 8:118-120.