Nathan Goodman, Oded Shmueli. NP-complete Problems Simplified on Tree Schemas. Acta Informatica, 20:171-178, 1983.
@article{GoodmanS83, title = {NP-complete Problems Simplified on Tree Schemas}, author = {Nathan Goodman and Oded Shmueli}, year = {1983}, tags = {completeness, XML, XML Schema}, researchr = {https://researchr.org/publication/GoodmanS83}, cites = {0}, citedby = {0}, journal = {Acta Informatica}, volume = {20}, pages = {171-178}, }