Index: /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPIOInstanceProvider.cs
===================================================================
--- /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPIOInstanceProvider.cs	(revision 16008)
+++ /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPIOInstanceProvider.cs	(revision 16009)
@@ -48,5 +48,5 @@
     public override string ReferencePublication
     {
-      get { return String.Empty; }
+      get { return "Martí, R., & Reinelt, G. (2011). The Linear Ordering Problem. Applied Mathematical Sciences. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-16729-4"; }
     }
 
Index: /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPMBInstanceProvider.cs
===================================================================
--- /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPMBInstanceProvider.cs	(revision 16008)
+++ /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPMBInstanceProvider.cs	(revision 16009)
@@ -48,5 +48,5 @@
     public override string ReferencePublication
     {
-      get { return String.Empty; }
+      get { return "Martí, R., & Reinelt, G. (2011). The Linear Ordering Problem. Applied Mathematical Sciences. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-16729-4"; }
     }
 
Index: /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPRANDA1InstanceProvider.cs
===================================================================
--- /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPRANDA1InstanceProvider.cs	(revision 16008)
+++ /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPRANDA1InstanceProvider.cs	(revision 16009)
@@ -48,5 +48,5 @@
     public override string ReferencePublication
     {
-      get { return String.Empty; }
+      get { return "Martí, R., & Reinelt, G. (2011). The Linear Ordering Problem. Applied Mathematical Sciences. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-16729-4"; }
     }
 
Index: /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPRANDA2InstanceProvider.cs
===================================================================
--- /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPRANDA2InstanceProvider.cs	(revision 16008)
+++ /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPRANDA2InstanceProvider.cs	(revision 16009)
@@ -48,5 +48,5 @@
     public override string ReferencePublication
     {
-      get { return String.Empty; }
+      get { return "Martí, R., & Reinelt, G. (2011). The Linear Ordering Problem. Applied Mathematical Sciences. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-16729-4"; }
     }
 
Index: /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPRANDBInstanceProvider.cs
===================================================================
--- /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPRANDBInstanceProvider.cs	(revision 16008)
+++ /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPRANDBInstanceProvider.cs	(revision 16009)
@@ -48,5 +48,5 @@
     public override string ReferencePublication
     {
-      get { return String.Empty; }
+      get { return "Martí, R., & Reinelt, G. (2011). The Linear Ordering Problem. Applied Mathematical Sciences. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-16729-4"; }
     }
 
Index: /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPSGBInstanceProvider.cs
===================================================================
--- /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPSGBInstanceProvider.cs	(revision 16008)
+++ /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPSGBInstanceProvider.cs	(revision 16009)
@@ -48,5 +48,5 @@
     public override string ReferencePublication
     {
-      get { return String.Empty; }
+      get { return "Martí, R., & Reinelt, G. (2011). The Linear Ordering Problem. Applied Mathematical Sciences. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-16729-4"; }
     }
 
Index: /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPSPECInstanceProvider.cs
===================================================================
--- /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPSPECInstanceProvider.cs	(revision 16008)
+++ /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPSPECInstanceProvider.cs	(revision 16009)
@@ -48,5 +48,5 @@
     public override string ReferencePublication
     {
-      get { return String.Empty; }
+      get { return "Martí, R., & Reinelt, G. (2011). The Linear Ordering Problem. Applied Mathematical Sciences. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-16729-4"; }
     }
 
Index: /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPXLOLIBInstanceProvider.cs
===================================================================
--- /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPXLOLIBInstanceProvider.cs	(revision 16008)
+++ /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/LOP/LOPXLOLIBInstanceProvider.cs	(revision 16009)
@@ -48,5 +48,5 @@
     public override string ReferencePublication
     {
-      get { return String.Empty; }
+      get { return "Martí, R., & Reinelt, G. (2011). The Linear Ordering Problem. Applied Mathematical Sciences. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-16729-4"; }
     }
 
Index: /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/PFSP/FSSPTAILIBInstanceProvider.cs
===================================================================
--- /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/PFSP/FSSPTAILIBInstanceProvider.cs	(revision 16008)
+++ /branches/2864_PermutationProblems/HeuristicLab.Problems.Instances.PermutationProblems/3.3/PFSP/FSSPTAILIBInstanceProvider.cs	(revision 16009)
@@ -48,5 +48,5 @@
     public override string ReferencePublication
     {
-      get { return String.Empty; }
+      get { return "Taillard, E. (1993). Benchmarks for basic scheduling problems. European Journal of Operational Research, 64(2), 278–285. https://doi.org/10.1016/0377-2217(93)90182-m"; }
     }
 
