diff --git a/specifications/README.md b/specifications/README.md
index de9980f4ecdf920900b6d3c5ade667ac76d9362c..1837a0036f29881cfe768e38d69d17c6923cb54f 100644
--- a/specifications/README.md
+++ b/specifications/README.md
@@ -4,7 +4,7 @@
 real-time platform-level wargaming across multiple host computers and is used worldwide,
 especially by military organizations but also by other agencies such as those involved in
 space exploration and medicine.*
-* Wikipedia: [Distributed Interactive Simulation (DIS)](https://en.wikipedia.org/wiki/Distributed_Interactive_Simulation) IEEE Standard
+* Wikipedia: [Distributed Interactive Simulation (DIS)](https://en.wikipedia.org/wiki/Distributed_Interactive_Simulation) IEEE Standard and [RPR FOM](https://en.wikipedia.org/wiki/RPR_FOM)
 * [Simulation Interoperabilty Standards Organization (SISO)](https://www.sisostds.org): "Simulation Interoperability and Reuse through Standards"
 * SISO Product Support Group (PSG): [DIS / RPR FOM PSG - Distributed Interactive Simulation / Real-time Platform Reference Federation Object Model](https://www.sisostds.org/StandardsActivities/SupportGroups/DISRPRFOMPSG.aspx)
 
@@ -55,7 +55,7 @@ Guidelines are established for the verification, validation, and accreditation (
 
 ---
 
-**5. SISO-REF-010-2017: Reference for Enumerations for Simulation Interoperability**
+**5. SISO-REF-010-2019: Reference for Enumerations for Simulation Interoperability**
 * https://www.sisostds.org/ProductsPublications/ReferenceDocuments.aspx
 * *Abstract.* 
 SISO-REF-010 specifies numerical values and associated definitions for fields that are identified as enumerations in SISO Standards Products and SISO-sponsored standards published by IEEE for High Level Architecture (HLA) and Distributed Interactive Simulation (DIS). Enumerations for simulations may be applied in other architectures, such as the Test and Training Enabling Architecture (TENA).