^This accounts for the widespread distribution of X among starfish.
References
^List of author names (Date). "Article title". Journal name. volume: pagenumbers. PMIDPMIDnumber. {{cite journal}}: |author= has generic name (help); |pages= has extra text (help); |volume= has extra text (help); Check |pmid= value (help); Check date values in: |date= (help)
Further reading
List of authors (2007). Big Book of Cell Biology. Boca Raton, FL: CRC Press. pp. 109–112. ISBN987-0-654321. {{cite book}}: Check |isbn= value: checksum (help)
List of authors (2008). "The Secret Life of Acetabularia". Another Big Book of Cell Biology. Boca Raton, FL: CRC Press. pp. 23–56. ISBN123-0-56789. {{cite book}}: Check |isbn= value: length (help)