Computing a metric basis of a 2-connected bipartite distance-hereditary graph
A vertex x of a connected graph G resolves two distinct vertices u and v in V(G) if the distance between u and x differs from the distance between v and x. A subset X of V(G) resolves two distinct vertices u and v in G if there exists a vertex x in X that resolves u and v; X is a metric generator of G if, for every pair of distinct vertices u and v of G, X resolves u and v and is a metric basis of G if X is a metric generator of G with minimum cardinality. The metric dimension of G is the cardinality of a metric basis of G.