+.. |Activities| replace:: **Activities**
+.. _Activities: api/classsimgrid_1_1s4u_1_1Activity.html
+
+.. |Hosts| replace:: **Hosts**
+.. _Hosts: api/classsimgrid_1_1s4u_1_1Host.html
+
+.. |Links| replace:: **Links**
+.. _Links: api/classsimgrid_1_1s4u_1_1Link.html
+
+.. |Storages| replace:: **Storages**
+.. _Storages: api/classsimgrid_1_1s4u_1_1Storage.html
+
+.. |VirtualMachines| replace:: **VirtualMachines**
+.. _VirtualMachines: api/classsimgrid_1_1s4u_1_1VirtualMachine.html
+
+.. |Host| replace:: **Host**
+.. _Host: api/classsimgrid_1_1s4u_1_1Host.html
+
+.. |Link| replace:: **Link**
+.. _Link: api/classsimgrid_1_1s4u_1_1Link.html
+
+.. |Mailbox| replace:: **Mailbox**
+.. _Mailbox: api/classsimgrid_1_1s4u_1_1Mailbox.html
+
+.. |Barrier| replace:: **Barrier**
+.. _Barrier: api/classsimgrid_1_1s4u_1_1Barrier.html
+
+.. |ConditionVariable| replace:: **ConditionVariable**
+.. _ConditionVariable: api/classsimgrid_1_1s4u_1_1ConditionVariable.html
+
+.. |Mutex| replace:: **Mutex**
+.. _Mutex: api/classsimgrid_1_1s4u_1_1Mutex.html