TITLE: What was the last mathematical paper published in Latin?
QUESTION [20 upvotes]: From an answer to a previous question I learned that Peano published in Latin as long as 1889.

What was the last mathematical paper/book of recognized importance published in Latin?

REPLY [25 votes]: Zentralblatt lets you search by language of paper where I discovered this recent example.

Schechtman, Vadim
New definition of a vertex algebroid. (Definitio nova algebroidis verticiani.) (Latin)
  A Bernstein, Joseph (ed.) et al., Studies in Lie theory. Dedicated to A. Joseph on his sixtieth birthday. 
  Basel: Birkhäuser. Progress in Mathematics 243, 443-494 (2006). 

In the preface, the editors note that Schechtman's paper is "linguistically refreshing"!