Update UnitSystem.md

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@@ -135,16 +135,14 @@ Description how to build units witht the D-SI format is [here](StructureSIUnits.
 ## Additional units from 8th edition of the SI-brochure 
 |D-SI Identifyer|D-SI Medal|SI name|SI symbol |SI base unit expression|D-SI base unit expression|SI Reference| 
 |-:|-:|-:|-:|-:|-:|-:| 
-|\clight|bronze|n. u. speed|*c<sub>0</sub>*|m/s|\metre\second\tothe{-1}|[3, Table 7]| 
-|\planckbar|bronze|n. u. action|*ħ*|Js|\joule\second|[3, Table 7]|
-|\electronmass|bronze|n. u. mass|*m<sub>e</sub>*|kg|\kilogram|[3, Table 7]| \atomicmassunit
-|\naturalunittime|bronze|n. u. time|*ħ/(m<sub>e</sub>c<sub>0</sub><sup>2</sup>)*|s|\second|[3, Table 7]| atomicunittime
-|astronomical unit charge|bronze|||||[3, Table 7]|
-|astro unit time|bronze |||||[3, Table 7]|
-|\planckbar|bronze |||||[3, Table 7]| 
-|\bohr|bronze|||||[3, Table 7]|
-|\hartree|bronze|||||[3, Table 7]|
-|astru unit time|bronze|||||[3, Table 7]|
+|\clight|bronze|n.u. of speed|*c<sub>0</sub>*|m/s|\metre\second\tothe{-1}|[3, Table 7]| 
+|\planckbar|bronze|n.u. of action and a.u. of action|*ħ*|Js|\joule\second|[3, Table 7]|
+|\electronmass|bronze|n.u. of mass and a.u. of mass|*m<sub>e</sub>*|kg|\kilogram|[3, Table 7]| \atomicmassunit
+|\naturalunittime|bronze|n.u. of time|*ħ/(m<sub>e</sub>c<sub>0</sub><sup>2</sup>)*|s|\second|[3, Table 7]| 
+|\elementarycharge|bronze|a.u. of charge|*e*|C||[3, Table 7]| atomicunittime
+|\atomicunittime|bronze |a.u. of time|ħ/Eh|s||[3, Table 7]|
+|\bohr|bronze|a.u. of length|a0|m||[3, Table 7]|
+|\hartree|bronze|a.u. of energy|Eh|J|[3, Table 7]|
 |\bar|bronze|||||[3, Table 8]|
 |\mmHg|bronze|||||[3, Table 8]|
 |\angstrom|bronze|||||[3, Table 8]|