Carl G. Jockusch Jr., Robert I. Soare. Degrees of Orderings Not Isomorphic to Recursive Linear Orderings. Annals of Pure and Applied Logic, 52(1-2):39-64, 1991.
@article{JockuschS91, title = {Degrees of Orderings Not Isomorphic to Recursive Linear Orderings}, author = {Carl G. Jockusch Jr. and Robert I. Soare}, year = {1991}, researchr = {https://researchr.org/publication/JockuschS91}, cites = {0}, citedby = {0}, journal = {Annals of Pure and Applied Logic}, volume = {52}, number = {1-2}, pages = {39-64}, }