Bing found the following results
T-54/T-55 - Wikipedia
T-54/T-55 operators and variants - Wikipedia
T-55 - Tank Encyclopedia
Soviet T-54 Main Battle Tank (1949) - Tank Encyclopedia
T-54/T-55 Main Battle Tank | HowStuffWorks
Everything To Know About The Soviet T-54/T-55 Tanks - MSN
T-54 Medium Tank / Main Battle Tank (MBT) - Military Factory
Arsenal: The T-54 Tank - HistoryNet
Russia is shipping very old tanks west, signaling shortage in Ukraine
T-54 | Soviet tank | Britannica