@TechReport{ang:etal23-r525,
  author = 	 "Li, A. and Mueller, S. and Pearl, J.",
  title = 	 "$\epsilon$-Identifiability of Causal Quantities",
  institution =  "Department of Computer Science, 
 		  University of California, Los Angeles",
  address = 	 "CA",
  year = 	 2023,
  number =	 "R-525, {$<$http://ftp.cs.ucla.edu/pub/stat\_ser/r525.pdf$>$}"
}