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 ### Tree (species taxonomy tree)
 
--   The [lesson slides](../Lesson-06.qmd) use the [NCBI Taxonomy Database](https://www.ncbi.nlm.nih.gov/taxonomy) *"from a database dump downloaded from the NCBI FTP server on 2017-02-3, imported in a SQLite database table as a phylogenetic tree"* by R. Vos:
+-   The [lesson slides](../Lesson-RecurSQL.qmd) use the [NCBI Taxonomy Database](https://www.ncbi.nlm.nih.gov/taxonomy) *"from a database dump downloaded from the NCBI FTP server on 2017-02-3, imported in a SQLite database table as a phylogenetic tree"* by R. Vos:
 
     > Vos, Rutger (2017): NCBI taxonomy database files. figshare. Dataset. <https://doi.org/10.6084/m9.figshare.4620733.v1>