Good, B. H.; Chapman, R. L. (). „The Ultrastructure of Phycopeltis (Chroolepidaceae: Chlorophyta). I. Sporopollenin in the Cell Walls”. American Journal of Botany. 65 (1): 27–33. doi:10.2307/2442549. JSTOR2442549.
Atkinson, A. W.; Gunning, B. E. S.; John, P. C. L. (). „Sporopollenin in the cell wall of Chlorella and other algae: Ultrastructure, chemistry, and incorporation of 14C-acetate, studied in synchronous cultures”. Planta. 107 (1): 1–32. doi:10.1007/BF00398011. PMID24477346.
Good, B. H.; Chapman, R. L. (). „The Ultrastructure of Phycopeltis (Chroolepidaceae: Chlorophyta). I. Sporopollenin in the Cell Walls”. American Journal of Botany. 65 (1): 27–33. doi:10.2307/2442549. JSTOR2442549.
Atkinson, A. W.; Gunning, B. E. S.; John, P. C. L. (). „Sporopollenin in the cell wall of Chlorella and other algae: Ultrastructure, chemistry, and incorporation of 14C-acetate, studied in synchronous cultures”. Planta. 107 (1): 1–32. doi:10.1007/BF00398011. PMID24477346.