dcngmbh / moox_core

		foreach(Less_Tree_UnitConversions::$groups as $groupName){

			$group = Less_Tree_UnitConversions::${$groupName};

			foreach($this->numerator as $atomicUnit){

				if( isset($group[$atomicUnit]) && !isset($result[$groupName]) ){

					$result[$groupName] = $atomicUnit;

				}

			}

			foreach($this->denominator as $atomicUnit){

				if( isset($group[$atomicUnit]) && !isset($result[$groupName]) ){

				}

			}

			foreach($this->denominator as $atomicUnit){

				if( isset($group[$atomicUnit]) && !isset($result[$groupName]) ){

					$result[$groupName] = $atomicUnit;

				}

			}

		}

		return $result;