diff --git a/biblio.bib b/biblio.bib
index 2643aeb..0acc509 100644
--- a/biblio.bib
+++ b/biblio.bib
@@ -186,3 +186,10 @@ year = {2011}
   publisher={Elsevier}
 }
 
+@article{andrich2018high,
+  title={High-Precision Measurement of Sine and Pulse Reference Signals Using Software-Defined Radio},
+  author={Andrich, Carsten and Ihlow, Alexander and Bauer, Julia and Beuster, Niklas and Del Galdo, Giovanni},
+  journal={IEEE Transactions on Instrumentation and Measurement},
+  year={2018},
+  publisher={IEEE}
+}
diff --git a/ifcs2018_proceeding.tex b/ifcs2018_proceeding.tex
index 4b985c6..4a9b6d7 100644
--- a/ifcs2018_proceeding.tex
+++ b/ifcs2018_proceeding.tex
@@ -67,7 +67,7 @@ As with the analog mixer,
 the non-linear behavior of the downconverter introduces noise or spurious signal aliasing as
 well as the generation of the frequency sum signal in addition to the frequency difference.
 These unwanted spectral characteristics must be rejected before decimating the data stream
-for the phase noise spectral characterization. The characteristics introduced between the
+for the phase noise spectral characterization \cite{andrich2018high}. The characteristics introduced between the
 downconverter
 and the decimation processing blocks are core characteristics of an oscillator characterization
 system, and must reject out-of-band signals below the targeted phase noise -- typically in the