diff --git a/data/extracted/Dustmann2012.yml b/data/extracted/Dustmann2012.yml
index c58f616..35dcb24 100644
--- a/data/extracted/Dustmann2012.yml
+++ b/data/extracted/Dustmann2012.yml
@@ -15,7 +15,7 @@ group: working mothers
 data: national administrative Social Security Records (1975-2008)
 
 design: quasi-experimental
-method: difference-in-difference analysis
+method: difference-in-difference analysis; regression discontinuity
 sample: 13000
 unit: individual
 representativeness: national, census