diff --git a/paper.md b/paper.md
index 821137b..0b72644 100644
--- a/paper.md
+++ b/paper.md
@@ -71,8 +71,10 @@ Shiny app, and with the computation of Greeks in jump diffusion models.
 
 `greeks` has been applied to investigate the performance of Monte Carlo Greeks
 for jump diffusion Models from [@Hudde:2023].
-Furthermore, `greeks` is used in graduate courses in financial mathematics to
-provide a better understanding of option prices and Greeks by interactive
+Furthermore, `greeks` is used in graduate courses in financial mathematics (such
+as
+https://www.hs-koblenz.de/fileadmin/media/fb_mathematik-und-technik/Pruefungsamt-Dokumente/Modulhandbuch_Ma-AM_aktuell.pdf#page=32)
+to provide a better understanding of option prices and Greeks by interactive
 visualizations.
 `greeks` is also suited for financial risk management purposes.