 The Shapley value [ 1 ] is known to be the unique method that satisfies certain desirable properties , and this motivates its use.
<meaning-changed>  The Shapley value [ 1 ] is known to be the unique method that satisfies certain desirable properties , and this motivates its use.
 The use of the Shapley value is justified by citing [ 1 ] is known to be the unique method that satisfies certain desirable properties , and this motivates its use.