Jan Johannsen. Backdoors into Two Occurrences. JSAT, 12(1):1-15, 2020. [doi]
@article{Johannsen20, title = {Backdoors into Two Occurrences}, author = {Jan Johannsen}, year = {2020}, doi = {10.3233/sat-200125}, url = {https://doi.org/10.3233/sat-200125}, researchr = {https://researchr.org/publication/Johannsen20}, cites = {0}, citedby = {0}, journal = {JSAT}, volume = {12}, number = {1}, pages = {1-15}, }