J. Scott Provan. The role of Steiner hulls in the solution to Steiner tree problems. Annals OR, 33(7):537-548, 1991. [doi]
@article{Provan91-0, title = {The role of Steiner hulls in the solution to Steiner tree problems}, author = {J. Scott Provan}, year = {1991}, doi = {10.1007/BF02067240}, url = {https://doi.org/10.1007/BF02067240}, researchr = {https://researchr.org/publication/Provan91-0}, cites = {0}, citedby = {0}, journal = {Annals OR}, volume = {33}, number = {7}, pages = {537-548}, }