Bengt Aspvall. Recognizing Disguised NR(1) Instances of the Satisfiability Problem. J. Algorithms, 1(1):97-103, 1980.
@article{Aspvall80, title = {Recognizing Disguised NR(1) Instances of the Satisfiability Problem}, author = {Bengt Aspvall}, year = {1980}, researchr = {https://researchr.org/publication/Aspvall80}, cites = {0}, citedby = {0}, journal = {J. Algorithms}, volume = {1}, number = {1}, pages = {97-103}, }