Here’s the 3Blue1Brown video on error-correcting codes: How to send a self-correcting message (Hamming codes)
Catherine Taylor Clelland, Viviana Risca, and Carter Bancroft. Hiding messages in DNA microdots. Nature, June 1999.
George M. Church, Yuan Gao, and Sriram Kosuri. Next-Generation Digital Information Storage in DNA (and Supplemental Materials with the code and details!), Science, August 2012.
James F. Gillooly, Andrew Hein, and Rachel Damiani. Nuclear DNA Content Varies with Cell Size across Human Cell Types. Cold Spring Harbor Perspectives in Biology, July 2015.