Kelly A. da Silva et al., "Cyclization of (+)-citronellal to (−)-isopulegol catalyzed by H3PW12O40/SiO2." Catalysis Communications Vol. 5 Nr. 8 (2004), blz. 425-429. doi:10.1016/j.catcom.2004.05.001
Raquel G. Jacob et al, "Green synthesis of (−)-isopulegol from (+)-citronellal: application to essential oil of citronella." Tetrahedron Letters Vol. 44 Nr. 18 (2003), blz. 3605-3608. doi:10.1016/S0040-4039(03)00714-7
Mercedes Fuentes et al., "Cyclization of Citronellal to Isopulegol by Zeolite Catalysis." Applied Catalysis, vol. 47 nr. 2 (1989), blz. 367-374. doi:10.1016/S0166-9834(00)83242-X
Jung Hun Kim et al., "Synthesis of (+)-hernandulcin and (+)-epihernandulcin." Tetrahedron Letters, vol. 43 nr. 27 (2002), blz. 4721-4722. doi:10.1016/S0040-4039(02)00939-5
