diff --git a/controls-engineering-in-frc.bib b/controls-engineering-in-frc.bib
index e0e44f6..61e5a75 100644
--- a/controls-engineering-in-frc.bib
+++ b/controls-engineering-in-frc.bib
@@ -24,8 +24,8 @@ @online{bib:banana_distribution
 @online{bib:ctrl_wheeled_mobile_robots,
   author = {Luca and Oriolo and Vendittelli},
   title = {Control of Wheeled Mobile Robots: An Experimental Overview},
-  url = {https://www.diag.uniroma1.it/~labrob/pub/papers/RAMSETE_Chap_LNCIS270.pdf},
-  urldate = {2018-08-09}
+  url = {https://web.archive.org/web/20240709180729/https://www.diag.uniroma1.it/~labrob/pub/papers/RAMSETE_Chap_LNCIS270.pdf},
+  urldate = {2024-07-10}
 }
 
 @online{bib:first-hand_the_ut,