diff --git a/README.md b/README.md
index f4f6115..082b140 100644
--- a/README.md
+++ b/README.md
@@ -213,4 +213,4 @@ Then, we can get the forecasting accuracy of the combination method on the targe
 References
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-- Li, Xixi, Yanfei Kang, and Feng Li. (2020). Forecasting with time series imaging, _Expert Systems with Applications.  [Journal's version](https://www.sciencedirect.com/science/article/pii/S0957417420305042?via%3Dihub).
+- Li, Xixi, Yanfei Kang, and Feng Li. (2020). Forecasting with time series imaging, Expert Systems with Applications.  [Journal's version](https://www.sciencedirect.com/science/article/pii/S0957417420305042?via%3Dihub).