%0 Journal Article %A R. Penney %A R. Urban %T Upper Bound for the Heat Kernel on Higher-Rank NA Groups %J Journal of Lie Theory %D 2013 %P 655-668 %V 23 %N 3 %U https://jolt.centre-mersenne.org/articles/10.5802/jolt.742/ %R 10.5802/jolt.742 %F JOLT_2013_23_3_a2