diff --git a/GraphicalModels.md b/GraphicalModels.md
index efe31bb..917be9a 100644
--- a/GraphicalModels.md
+++ b/GraphicalModels.md
@@ -216,6 +216,11 @@ categories):
     graphical models as a prior information, which turn out to play key
     roles in unsupervised machine learning tasks such as community
     detection.
+-   `r pkg("sparseSEM")`: The package provides lasso (_l1_) and 
+    elastic net (_l1_/_l2_) penalized Maximum Likelihood Estimator (MLE) for
+    Structural Equation Models (SEM). Those estimators yield sparse SEM 
+    that can be used for inferring network structures and predicting
+    causal effects.
 
 ### Bayesian Networks/Probabilistic expert systems