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@@ -20,7 +20,7 @@ project](https://www.ohwr.org/project/white-rabbit/wiki).
 ## Project information
 
 - [Preliminary study of input from the WR community, CERN IT](https://ohwr.org/project/wr-switch-hw-v4/wikis/Features-choice)
-- [In-depth study of WRS-4 features](uploads/8df374029c4b2a3cc025a59a72edce55/WRS-v4-hw-study.pdf) by SevenSolutions:
+- [In-depth study of WRS-4 features](uploads/2309166f9f7deb1249f3fa6fcb99c925/Study_on_the_new_hardware_features_for_the_WRS_4.pdf) by SevenSolutions:
 - [Analysis of resource utilization for the candidate FPGA choice](uploads/31c7019f3c24cb12ec0f8c79c108af59/WRS-v4-resource-utilization.pdf) by Creotech
 - [Frequently Asked Questions](faq)
 
@@ -31,7 +31,7 @@ project](https://www.ohwr.org/project/white-rabbit/wiki).
 
 |**Completion**|**Task**|**Deliverable**|**Status**|
 |---------------|--------|---------------|-------|
-|2020: <br /> end March  |Study of features, components,<br /> requirements, FPGA/CPU choice - WP1, WP2 | Docs: "Study of WRS-v4 features" and <br /> [Analysis of FPGA resource utilization](uploads/31c7019f3c24cb12ec0f8c79c108af59/WRS-v4-resource-utilization.pdf)  | Completed |
+|2020: <br /> end March  |Study of features, components,<br /> requirements, FPGA/CPU choice - WP1, WP2 | Docs: [Study of WRS-v4 features](uploads/2309166f9f7deb1249f3fa6fcb99c925/Study_on_the_new_hardware_features_for_the_WRS_4.pdf) and <br /> [Analysis of FPGA resource utilization](uploads/31c7019f3c24cb12ec0f8c79c108af59/WRS-v4-resource-utilization.pdf)  | Completed |
 |2020:<br /> end May  | 1. Proposal of WRS-v4 main board architecture - WP3 <br /> 2. Verification of 1Gb and 10Gb transceiver - WP4  | 1. Doc:"Proposal of WRS-v4 arch"<br /> 2. Demo/prototype  | Ongoing|
 |2020: <br />June  | Request for feedback from WR community |  | 
 |2020: <br />end July  | Update of study/proposal documents | Updated documents |  |
@@ -101,7 +101,7 @@ project](https://www.ohwr.org/project/white-rabbit/wiki).
 |09-10-2019|[Creotech](https://creotech.pl/pl/home-3-3-3-2/) delivered [WRS resource utilisation on Xilinx US+ FPGA](uploads/31c7019f3c24cb12ec0f8c79c108af59/WRS-v4-resource-utilization.pdf) |
 |19-10-2019| [Seven Solutions](https://sevensols.com/) delivered first version of "Study on the new hardware features for the WRS-4" |
 |28-02-2020| Final choice of FPGA: Zynq Ultrascale+ XCZU17EG-1FFVC1760E |
-|01-04-2020| [Seven Solutions](https://sevensols.com/) delivered final version of "Study on the new hardware features for the WRS-4" |
+|01-04-2020| [Seven Solutions](https://sevensols.com/) delivered final version of [Study on the new hardware features for the WRS-4](uploads/2309166f9f7deb1249f3fa6fcb99c925/Study_on_the_new_hardware_features_for_the_WRS_4.pdf) |