diff --git a/README.md b/README.md
index f05f43b..9d6be25 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ This is an open-source muscle model for the commercial finite element analysis s
 
 For a detailed description of the model see:
 
-> C. Kleinbach, O. Martynenko, J. Promies, D.F.B. Haeufle, J. Fehr, S. Schmitt: Implementation and Validation of the Extended Hill-type Muscle Model with Robust Routing Capabilities in LS-DYNA for Active Human Body Models, Biomedical Engineering Online,2017.
+> C. Kleinbach, O. Martynenko, J. Promies, D.F.B. Haeufle, J. Fehr, S. Schmitt: Implementation and Validation of the Extended Hill-type Muscle Model with Robust Routing Capabilities in LS-DYNA for Active Human Body Models, Biomedical Engineering Online, 2017.
 > 
 > **Abstract**:
 >