Article IX of the UCC is called Secured Transactions; Sales of Accounts and Chattel Paper.
Jennings, Marianne M.
"Does Secured Transaction Mean I Have a Lien? Thoughts on Chattel Mortgages (What?) and Other Complexities of Article IX,"
Nova Law Review: Vol. 17:
2, Article 5.
Available at: https://nsuworks.nova.edu/nlr/vol17/iss2/5