diff --git a/content/article/kwakernaak93_robus_contr_h_tutor_paper.md b/content/article/kwakernaak93_robus_contr_h_tutor_paper.md
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+title = "Robust control and $\mathcal{H}_$-optimization - Tutorial paper"
+author = ["Thomas Dehaeze"]
+draft = false
++++
+
+Tags
+: [H Infinity Control]({{< relref "h_infinity_control" >}}), [Weighting Functions]({{< relref "weighting_functions" >}})
+
+Reference
+: ([Kwakernaak 1993](#orged0978c))
+
+Author(s)
+: Kwakernaak, H.
+
+Year
+: 1993
+
+
+## Bibliography {#bibliography}
+
+Kwakernaak, Huibert. 1993. “Robust Control and H$infty$-Optimization - Tutorial Paper.” _Automatica_ 29 (2):255–73. 90122-a.
diff --git a/content/zettels/weighting_functions.md b/content/zettels/weighting_functions.md
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+title = "Weighting Functions"
+author = ["Thomas Dehaeze"]
+draft = false
++++
+
+Tags
+: [H Infinity Control]({{< relref "h_infinity_control" >}})